Argentina to launch new inflation data method

BUENOS AIRES: Argentina said Saturday it will start using a new method of measuring inflation after the International Monetary Fund censured Buenos Aires over the quality of its economic data.

Economy Minister Hernan Lorenzino told C5N television that it would be "a new consumer price index to replace the current measure that has supposedly caused so many problems for the IMF."

Lorenzino said that officials expect to begin using the new method starting in the last quarter of 2013.

On Friday, the IMF's executive board took the unprecedented measure of issuing a "declaration of censure" against Argentina, opening the way for one of Latin America's largest economies to lose its voting rights at the multinational lender, or even lose its membership.

But the board put off that decision, giving Buenos Aires until September 29 to resolve the problem.

"It's an ongoing process and the Fund is aware of that," said Lorenzino, who criticized the decision as a "double standard."

In a statement, his ministry suggested that "many countries" have changed their unemployment and CPI measures, as well as they way they compile this data.

Official Argentine statistics are sharply different from those private sector economists issue.

For instance, last month the government said that inflation in 2012 was 10.8 percent, while a group of private economists who collate their data put the rate at 25.6 percent.

Buenos Aires benefits from understating the data because a large part of its sovereign debt is indexed to inflation.

In rejecting the IMF's decision, President Cristina Kirchner's government demanded that the lender's board hold a special meeting to review its policy toward Argentina and "its role in the origin of the global economic and financial crisis."

Brazil, an IMF board member and strategic ally of Argentina, criticized the censure as "counterproductive."

In a tweet, Kirchner herself suggested that her government's debt reduction policy "seems to be the real cause of anger from the IMF."

Argentina defaulted on some $100 billion in debt in 2001, and has since restructured its debt twice, covering around 75 percent of the nominal value of the bonds.

But the country is embroiled in a legal battle in the United States with hedge funds demanding that Buenos Aires repay $1.3 billion in bonds held by investment funds NML and Aurelius because they refused to take part in a 2005 restructuring agreed to by most of the other bondholders.

The IMF and Argentina have a long history of troubled relations, with successive governments blaming the Fund for domestic economic failures and the country's deep troubles in international debt markets.

In January 2006, the government paid off Argentina's debt with the IMF -- some $9.5 billion -- and cut links with the Fund.

Since then Argentina has been the only country in the G20 that does not allow annual economic assessments by official IMF teams. It has also promised not to ask for more financial aid.

But at the end of 2010, the IMF was invited back to assist with collection and formulation of economic data, opening the way to the current impasse.

-AFP/ac

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Captor is caring for boy, Alabama sheriff says

STORY HIGHLIGHTS

• NEW: "Ethan's innocent ... let him go home," a Midland City resident says about the child


• The suspect has been identified as 65-year-old Jimmy Lee Dykes


• Dykes is accused of killing a school bus driver and abducting a 5-year-old


• Authorities have said there is no connection between Dykes and the boy

Midland City, Alabama (CNN) -- As an armed standoff dragged into its fifth day Saturday, authorities negotiated through a ventilation pipe with a man accused of barricading himself and a 5-year-old hostage in an underground bunker in southeastern Alabama.

Police have been tight-lipped about a possible motive since the hostage drama began unfolding in Midland City with the shooting of school bus driver and the abduction of the 5-year-old, Ethan.

In a sign of perhaps how tense negotiations are between authorities and the suspect, officials have refused to detail what, if any, demands have been made by the suspect.

Michelle Riley, a resident of Midland City, pleaded for the suspect to let the boy go.

"He just needs to know that ... everybody makes mistakes. Everybody's been through life events that changes them, but Ethan's innocent. You know, let him go home to his mother. Let him go home to his grandparents. Let him come out to the community. Let him go back to school and be with his friends," she said.

On Friday, the Dale County sheriff confirmed what neighbors have been saying and local news outlets have been reporting since the standoff began -- the suspected gunman's identity.

Charles Poland was fatally shot in Alabama on Tuesday.

Suspect Jimmy Lee Dykes, 65, is a Vietnam War veteran and retired truck driver.

'We don't want to make any mistakes,' Ala. governor says

He is Jimmy Lee Dykes, 65, a Vietnam veteran and retired truck driver who moved to the area about five years ago.

The sheriff's department released a photo of a gray-bearded, unsmiling Dykes and brief physical description: white male, 6 feet tall, weighing 170 pounds with brown eyes and gray hair.

Officials have been in "constant communication" with Dykes, Sheriff Wally Olson said Saturday. Dykes has told police that he has an electric heater and blankets for the boy. The sheriff publicly thanked Dykes for taking care of the child.

This much is known, according to police and witness statements: On Tuesday at about 3:40 p.m., bus driver Charles Poland Jr. was shuttling children from school to their homes when he dropped children off and the gunman boarded the bus.

The gunman demanded that Poland, 66, hand over two children. Poland refused, blocking access to the bus's narrow aisle as at least 21 children escaped out of the back emergency door, according to police.

The gunman shot Poland four times, killing him; grabbed the boy and then barricaded the two of them inside a nearby bunker.

It's unclear whether the gunman was after a specific child on the bus. Police have said there is no connection between the suspect and the abducted boy, whose identity is being withheld.

The suspect, who police have identified as Dykes, is holed up in a bunker 4 feet underground and built at least partially out of PVC pipe, authorities have said.

A hostage negotiator has been communicating with the alleged gunman through a 60-foot-long plastic ventilation pipe in an effort to end the standoff.

Authorities believe the boy is physically unharmed.

The suspect agreed to let police send down coloring books, crayons and prescription medication that the boy needs for treatment for Asperger's syndrome and attention deficit disorder, State Rep. Steve Clouse told CNN.

Neighbors have said the bunker has electricity, and Dykes has been known to stay in it for up to eight days, said James Arrington, the police chief in nearby Pinckard.

Dykes has been described as a self-styled survivalist with "anti-government" views, according to the Southern Poverty Law Center's Hatewatch.

As negotiations continue, preparations were under way for Poland's funeral.

The late school bus driver will be memorialized Saturday night at a visitation service, followed by a funeral service Sunday at the Ozark Civic Center.

Alabama Gov. Robert Bentley praised Poland for protecting the children on his bus.

"He stood in that place, and when that man came to take two children, he said no. And he lost his life because of that ... he did his job, and I'm proud of him as the governor but I'm just proud of him as a human being," he said.

CNN's George Howell reported from Midland City and Chelsea J. Carter wrote from Atlanta. CNN's Joe Sutton, Greg Botelho and Tristan Smith contributed to this report.

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Al Qaeda-linked militants free 2 Filipino hostages

MANILA, Philippines Abu Sayyaf gunmen have freed two Filipino members of a Jordanian TV journalist's crew believed to have been kidnapped by the al Qaeda-linked militants in June as they set out to interview the extremists in their jungle lairs in the southern Philippines, police said Sunday.

Policemen found frail-looking cameraman Ramel Vela and audio technician Roland Letriro late Saturday and brought them to a hospital in southern Sulu province, where they were kidnapped in June along with Jordanian Baker Abdulla Atyani, provincial police chief Senior Superintendent Antonio Freyra said. Atyani is believed to still be held by the gunmen.

"They really lost weight because they were constantly under stress each day," Freyra told The Associated Press.

It was not immediately clear who worked for their release or whether ransom was paid to the kidnappers.

Military officials have said Abu Sayyaf militants have demanded 130 million pesos ($3.1 million) for the release of Atyani and his two Filipino crew members. Hundreds of rebels of the Moro National Liberation Front, which signed a 1996 autonomy deal with the government, have also been negotiating with the Abu Sayyaf for the release of Atyani and other foreign hostages, including two European bird watchers who were abducted last February.

Moro commander Khabir Malik said his group had taken the initiative to seek the freedom of the hostages to help the government clean up the image of Sulu, a predominantly Muslim province where the Abu Sayyaf has carried out deadly bombings, kidnappings for ransom and beheadings, primarily in the early 2000s.

U.S.-backed military offensives have crippled the Abu Sayyaf in recent years, but it remains a national security threat. Washington has listed the Abu Sayyaf as a terrorist organization.

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Body of Missing Mom Reportedly Found in Turkey

The body of an American woman who went missing while on a solo trip to Turkey has been pulled from a bay in Istanbul, and nine people have been held for questioning, according to local media.

Sarai Sierra, 33, was last heard from on Jan. 21, the day she was due to board a flight home to New York City.

The state-run Andolu Agency reported that residents found a woman's body today near the ruins of some ancient city walls in a low-income district, and police identified the body as Sierra.

Rep. Michael Grimm, R-NY, who with his staff had been assisting the Sierra family in the search, said he was "deeply saddened" to hear the news of her death.

"I urge Turkish officials to move quickly to identify whomever is responsible for her tragic death and ensure that any guilty parties are punished to the fullest extent of the law," he said in a statement.

Courtesy Sarai Sierra's family

Footage Shows Missing New York Mom in Turkish Mall Watch Video

NYC Woman Goes Missing While Traveling In Turkey Watch Video

New York Mother Goes Missing on Turkish Vacation Watch Video

The New York City mother, who has two young boys, traveled to Turkey alone on Jan. 7 after a friend had to cancel. Sierra, who is an avid photographer with a popular Instagram stream, planned to document her dream vacation with her camera.

"It was her first time outside of the United States, and every day while she was there she pretty much kept in contact with us, letting us know what she was up to, where she was going, whether it be through texting or whether it be through video chat, she was touching base with us," Steven Sierra told ABC News before he departed for Istanbul last Sunday to aid in the search.

Steven Sierra has been in the country, meeting with U.S. officials and local authorities, as they searched for his wife.

On Friday, Turkish authorities detained a man who had spoken with Sierra online before her disappearance. The identity of the man and the details of his arrest were not disclosed, The Associated Press reported.

The family said it is completely out of character for the happily married mother, who met her husband in church youth group, to disappear.

She took two side trips, to Amsterdam and Munich, before returning to Turkey, but kept in contact with her family the entire time, a family friend told ABC News.

Further investigation revealed she had left her passport, clothes, phone chargers and medical cards in her room at a hostel in Beyoglu, Turkey.

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Astrophile: A scorched world with snow black and smoky

Astrophile is our weekly column on curious cosmic objects, from the solar system to the far reaches of the multiverse

Object: Titanium oxide snow
Location: The hot-Jupiter planet HD 209458b

There is something magical about waking up to discover it has snowed during the night. But there's no powdery white blanket when it snows on exoplanet HD 209458b. Snow there is black, smoky and hot as hell – resembling a forest fire more than a winter wonderland. Put it this way: you won't be needing mittens.

HD 209458b belongs to a family called hot Jupiters, gas-giant planets that are constantly being roasted due to their closeness to their sun. By contrast, the gas giants in our immediate neighbourhood, including Jupiter, are frigid, lying at the solar system's far reaches.

HD 209458b is also noteworthy because it is tidally locked, so one side is permanently facing towards its star while the other is in perpetual night. On the face of it, these conditions wouldn't seem to invite snow: temperatures on the day side come close to 2000° C, while the night side is comparatively chilly at around 500° C.

Snow made of water is, of course, impossible on this scorched world, but the drastic temperature differential sets up atmospheric currents that swirl material from the day side to night and vice versa. That means that any substances with the right combination of properties might be gaseous on the day side and then condense into a solid on the night side, and fall as precipitation. Say hello to titanium oxide snow.

Stuck on the surface

Although oxides of titanium make up only a small component of a hot Jupiter's atmosphere, these compounds have the right properties to fall as snow. But there was a snag that could have put a stop to any blizzards. Older computer models of hot Jupiters suggested that titanium oxides condensing in the air on the night side would snow – and remain on the relatively cool surface forever. "Imagine on Earth if you had no mechanism to evaporate water, it would never rain," says Vivien Parmentier of the Côte d'Azur Observatory in Nice, France.

Now he and colleagues have created a more detailed 3D computer model that shows that the snow can become a gas again as it falls and the temperature and pressure increase. Strong updraughts can then blow the titanium oxides back to the upper atmosphere. "The gas can come back on the top layers and snow again and again," says Parmentier.

Snowfall on HD 209458b would be like none you've ever seen. Though titanium dioxide is white and shiny, for example, the snowflakes would also contain silica oxides from the atmosphere, making them black. Since the atmosphere is also dark, snowstorms on the planet would be a smoky affair, the opposite of the white-outs we get on Earth. "It would be like being in the middle of a forest fire," says Parmentier.

Although the team studied a particular hot Jupiter, their model should apply equally to other planets of this type, suggesting hot snow is a common occurrence. Parmentier says we may have already spotted snow clouds on another hot Jupiter, HD 189733b, as spectral analysis of the planet suggests the presence of microscopic particles in its atmosphere.

David Sing of the University of Exeter, UK, who helped identify such particles on HD 189733b, says the team's new model goes a long way to explaining how titanium oxides behave on hot Jupiters. "We're pretty used to water condensing on Earth; there it is titanium because the temperatures are so much hotter."

Hot, black snow – now that would be something to wake up to.

Reference: http://arxiv.org/abs/1301.4522

If you would like to reuse any content from New Scientist, either in print or online, please contact the syndication department first for permission. New Scientist does not own rights to photos, but there are a variety of licensing options available for use of articles and graphics we own the copyright to.

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Twitter hit by "sophisticated" cyber attack

SAN FRANCISCO: Twitter said Friday it had been hit by a "sophisticated" cyber attack similar to those that recently hit major Western news outlets, and that the passwords of about 250,000 users were stolen.

"This attack was not the work of amateurs, and we do not believe it was an isolated incident," Twitter information security director Bob Lord said in a blog post.

Lord referred to an "uptick in large-scale security attacks aimed at US technology and media companies" as he told of Twitter detecting attempts this week to get unauthorized access to data in the firm's network.

The attack coincided with the revelation of several high-profile security breaches. The New York Times and The Wall Street Journal said this week that they had been hacked, and pointed to hackers from China.

Twitter did not confirm the source of the intrusion.

But Lord noted that "the attackers were extremely sophisticated, and we believe other companies and organizations have also been recently similarly attacked."

He said that Twitter shut down a live attack as it was in process.

However, Lord added, cyber attackers may have gotten usernames, email addresses, passwords and other data.

As a precaution, Twitter invalidated passwords of accounts at issue and sent people email messages telling them to create new passwords.

-AFP/ac

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Attorney: Slain prosecutor brought gun to work

By Michael Martinez and Mariano Castillo, CNN

updated 9:01 PM EST, Fri February 1, 2013

STORY HIGHLIGHTS

• Slain Texas prosecutor began carrying a gun to work daily, friend says


• Mark Hasse used a different courthouse exit every day, the attorney tells CNN


• Prosecutor didn't explain why he was fearful, she says


• Sheriff's chief deputy says he hadn't heard of fears and the gun carrying

(CNN) -- The Texas prosecutor shot to death in broad daylight outside a courthouse had feared for his life and carried a gun to work, according to a Dallas attorney describing herself as his friend.

Colleen A. Dunbar told CNN that she spoke with Kaufman County Assistant District Attorney Mark Hasse on January 24, and he told her he began carrying a gun in and out of the county courthouse on a daily basis.

Hasse was gunned down in the parking lot while going to work Thursday. Investigators on Friday were reviewing his caseload for possible clues about what led to his killing.

"He told me he would use a different exit every day because he was fearful for his life," Dunbar told CNN.

Assistant District Attorney Mark Hasse was one of 13 prosecuting attorneys in Kaufman County.

She said that Hasse offered no specifics on why he felt threatened, but only that he did. Dunbar said she was "shocked" by the killing.

When told of Dunbar's statements, Chief Deputy Rodney Evans of the Kaufman County Sheriff's Department was unaware of the information.

"But," Evans told CNN, "we've got 50 people here taking phone calls so somebody may know something I don't."

There were no significant advances in the case, Kaufman Police Chief Chris Aulbaugh said Friday, but that doesn't mean investigators weren't busy.

"We've fielded numerous tips coming in from the public. We are following up on every one of them," he said.

Police say they believe one or two people committed the crime, but there are few descriptive details because they hid their faces. Police are looking for a gray or silver older model sedan in relation to the case, Aulbaugh said.

Hasse was shot several times after "a very small, very short confrontation," police said.

Investigators are looking into whether Hasse's killing was retribution for any of the prosecutions he led. Hasse was one of 13 prosecuting attorneys in Kaufman County, each of whom handled between 380 and 390 cases.

Authorities hope that an ever-growing reward for information will reveal more leads.

Donors in the area have raised $64,500 to be used as reward money, and the police chief has asked for more donations.

The Texas Rangers, the FBI and agents from the Bureau of Alcohol, Tobacco, Firearms and Explosives have joined the manhunt.

CNN's David Fitzpatrick contributed to this report.

Part of complete coverage on

A former drug addict turned anti-violence crusader, and a man who lost his father in a temple shooting. These are just two of many in the conversation.

updated 1:22 PM EST, Fri February 1, 2013

At a town hall that brought all sides of the gun debate together, was there a consensus? Sort of.

updated 7:44 PM EST, Thu January 31, 2013

The federal background check system for gun buyers didn't stop a mentally ill man from buying a gun, which he used to kill his mother.

updated 7:37 PM EST, Thu January 31, 2013

In disputes over the future of gun laws, people espousing different positions often literally don't understand each other.

updated 7:41 PM EST, Thu January 31, 2013

"Too many children are dying. Too many children. We must do something," Giffords said in a rare public appearance.

updated 5:47 AM EST, Fri February 1, 2013

The family of a Chicago teenager killed just a week after she performed in President Barack Obama's inauguration supports using her death to help shape the debate over gun control.

updated 7:25 PM EST, Thu January 31, 2013

They spoke with the passion that only those who have lost so much can speak.

updated 7:47 PM EST, Thu January 31, 2013

Wayne LaPierre is not a large man. Yet, in Washington, he can make even brave politicians toss in the towel at the first sign of a scuffle.

updated 12:17 PM EST, Tue January 29, 2013

More than 6,000 people are killed each year by handguns. That's like having a massacre on the scale of Newtown 239 times during one year.

updated 3:18 PM EST, Sat January 26, 2013

On one side were pegboard panels mounted with various assault rifles and semi-automatic weapons -- including a Bushmaster similar to the one used in last month's Newtown school massacre.

updated 2:50 PM EST, Mon January 28, 2013

President Barack Obama proposed a package of measures intended to reduce gun violence in the wake of the Newtown school massacre last month. But would they work?

updated 7:49 AM EST, Mon January 28, 2013

Gens. Michael Hayden (Ret.) and Stanley McChrystal (Ret.) weigh in on America's gun debate.

updated 3:00 PM EST, Mon January 28, 2013

The "universal background checks" now being pushed by some gun control supporters is code for closing loopholes on such checks at gun shows and other private sales.

updated 3:01 PM EST, Mon January 28, 2013

Two couples rooted in the American mainstream. Two spouses who were nearly killed by mentally ill gunmen.

updated 3:02 PM EST, Mon January 28, 2013

Mass shootings in 2012 reignited the debate over legislation to combat gun violence. Here's a look at laws already on the books in the United States dealing with firearms.

Read More..

Egypt protesters, police clash at presidential palace

CAIRO Protesters denouncing Egypt's Islamist president hurled stones and firebombs through the gates of his palace gates on Friday, clashing with security forces who fired tear gas and water cannons, as more than a week of political violence came to Mohammed Morsi's symbolic doorstep for the first time.

The streets outside the presidential palace were a scene of mayhem for hours into the night.

Security forces pumped volley after volley of tear gas, set fire to protester tents and at one point dragged a protester to the ground, stripped him and beat him. Protesters burned tires and hurled stones and fireworks. A 23-year-old died when he was shot in the chest and forehead, the Health Ministry said.

The march on the palace, where Morsi was not present, was part of a wave of demonstrations in cities around the country called by opposition politicians, trying to wrest concessions from Morsi after around 60 people were killed in protests, clashes and riots.

But many of the protesters go further, saying he must be removed from office, accusing his Muslim Brotherhood of monopolizing power and failing to deal with the country's mounting woes. Many have been further angered by Morsi's praise of the security forces after the high death toll, which is widely blamed on excessive use of force by the police.

The day's unrest, however, risked boosting attempts by the government and Brotherhood to taint the opposition as violent and destructive -- a tack Morsi supporters have taken for weeks.

In a statement issued amid the clashes, Morsi accused protesters of trying to break ito the palace and said "political fores involved in incitement" are responsible for the violence. He called on all factions to condemn the violence and said security forces would "act decisively to protect state institutions."

A day earlier, the top opposition figures met with the Brotherhood for the first time and agreed on a joint promise to avoid violence. That drew sharp criticism from many anti-Morsi activists who said the politicians had played into the Brotherhood's hands and given legitimacy to any crackdown.

The fighting started when a crowd of several thousand marched to the palace in an upscale district of the capital, chanting, "the people want the fall of the regime," and "leave, leave, Morsi." Security forces allowed them to reach close to the main gate, and some protesters hurled shoes and stones through the fence into the grounds. Some climbed on the fence, apparently to better throw stones, but it did not appear they were breaking in.

At first, police and Republican Guards inside did not respond. But when several firebombs were thrown over the fence, the security forces unleashed water cannons, then tear gas, then riot police descended on the streets outside the palace.

Hours of clashes ensued, with streams of tear gas and stones flying through the air as security forces pushed the protesters back. A particularly heavy volley of dozens of tear gas canisters over a few minutes scattered much of the crowd, fleeing into side streets as riot police pursued and the sound of birdshot being fired echoed. Associated Press footage showed police stripping one protester on the ground and kicking him before dragging him into a van.

The Interior Ministry, in charge of police, later said in a statement that it would investigate the incident, calling it "regrettable and unacceptable."

More than 50 people were hurt during demonstrations around the country, the Health Ministry said.

The turmoil was the first significant violence at the presidential palace in the eight-day wave of protests -- though the site was the scene of clashes in November between anti-Morsi protesters and Islamists that left around 10 people dead. But other protests around the country on Friday did not see significant violence.

1/2

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Hillary Clinton Says Goodbye...Until 2016?

Feb 1, 2013 6:48pm

Image Credit: Manuel Balce Ceneta/AP Photo

After four years, nearly a million miles traveled and 112 countries visited, Hillary Clinton stepped down as the 67th secretary of state on Friday. But even on this, her final day as America’s top diplomat, she could not escape the questions about what she’ll do four years from now.

Many of the 1,000 employees who gathered to see her off expressed hope that this was not the end of her political career.

“2016! 2016!” the crowd chanted as   Clinton waved and drove away. “We’ll Miss You!”

Right before her departure, Clinton gave the traditional farewell speech to staff on the steps of the State Department’s historic C street lobby. In a roughly 10 minute, often reflective speech she called the 70,000 State Department employees part of “a huge extended family.”

“I cannot fully express how grateful I am to those with whom I have spent many hours here in Washington, around the world and in airplanes,” she said, drawing laughter from the audience.

Clinton’s trademark sense of humor was on display, even as she grew emotional  speaking about how much the State Department had  meant to her over the last four years.

PHOTOS: Hillary Clinton Through the Years

“I am very proud to have been secretary of state. I will miss you. I will probably be dialing ops just to talk,” she joked to a cheering and laughing crowd. “I will wonder what you all are doing, because I know that because of your efforts day after day, we are making a real difference.”

But  Clinton also was somber when discussing the danger diplomats and foreign service officers face all over the world, using Thursday’s suicide bombing attack against the U.S. Embassy in Ankara, Turkey, in which a Turkish guard was killed, as an example.

“We live in very complex and even dangerous times, as we saw again just today at our embassy in Ankara, where we were attacked and lost one of our foreign service nationals, and others injured,” said Clinton “But I spoke with the ambassador and the team there. I spoke with my Turkish counterpart. And I told them how much we valued their commitment and their sacrifice.”

Clinton was flanked by trusted deputies, Bill Burns and Tom Nides, whom she gave warm hugs to at the end of the speech. With a huge “Thank You” sign behind her she walked a rope line after finishing her speech, greeting the hordes of employees who wanted to shake her hand and say goodbye before she walked out of the State Department as secretary of state for the last time.

“It’s been quite a challenging week saying goodbye to so many people and knowing that I will not have the opportunity to continue being part of this amazing team,” Clinton said. “But I am so grateful that we’ve had a chance to contribute in each of our ways to making our country and our world stronger, safer, fairer and better.”

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Swarm-mongering: Brainless blobs flock together

Birds of a feather flock together and now so do brainless, inanimate blobs. Made of microscopic particles, the artificial swarms could shed light on the mysterious mechanisms behind the natural swarming seen in fish and birds. They might also lead to materials with novel properties like self-healing.

Animals such as birds, fish and even humans that move together in swarms have individual intelligence, but Jérémie Palacci of New York University and colleagues wondered whether inanimate objects could also swarm. "From a physicist's point of view, if many different systems behave in the same way there must be an underlying physical rule," he says.

To explore this idea, the team created microscopic plastic spheres, each one with a cubic patch of haematite, an iron oxide, on its surface. When submerged in hydrogen peroxide, the spheres spread out in a disordered fashion. The team then shone blue light on the particles, causing the haematite cubes to catalyse the breakdown of any nearby hydrogen peroxide into water and oxygen. As hydrogen peroxide concentration dropped temporarily in these regions due to the reaction, osmotic forces cause more hydrogen peroxide to flow into them, and that in turn buffets the spheres. The whole process then repeats.

Self-healing swarm

When two spheres come close enough to each other, the balance of chemical forces shifts so that the two spheres are attracted. If there are enough spheres in the same place they will cluster together to form shapes of symmetrically arranged particles, which the team call crystals (see video, above). These crystals continue to be buffeted by the movement caused by the breakdown of hydrogen peroxide – but now they move together as one object, replicating a life-like swarm. Switch off the light, however, and the reaction stops, causing the crystal to lose the forces that hold it together, and the particle distribution becomes disordered once again.

"This system shows that even though the particles have no social interaction or intelligence, you can exhibit collective behaviour with no biology involved," says Palacci. Since the haematite is magnetic, it is even possible to steer the crystals in one direction by applying a magnetic field. Such control might be useful if the artificial swarms are to be harnessed for applications.

As the particles automatically fill any gaps that form in the crystal, again thanks to the chemical dynamics of the system, they could be used to create a self-assembling, self-healing material. The work is published in the journal Science today.

Schooled by fish

Iain Couzin of Princeton University says these kinds of systems are very useful for studying biological collective behaviour because researchers have complete control over their interactions – unlike natural systems.

His team has its own swarming experiment published in the same issue of Science, based on schools of fish that prefer to stay in shade. Their paper shows that shining a light on some of the fish in the school causes them to speed up, to get away from the light. But as a result, non-illuminated fish also speed up, even though, if acting purely as individuals, they would have had no reason to do so. "We show just by using simple interactions that schools can have a sense of responsiveness to the environment that individuals do not have," he says.

Couzin sees no reason why such behaviour should be limited to natural systems. "In future it may be possible to create systems of particles that can make collective decisions – something we often think of as only possible in biological systems," he says.

Journal references: Living crystals: Science, DOI: 10.1126/science.1230020; Fish: Science, DOI: 10.1126/science.1225883

If you would like to reuse any content from New Scientist, either in print or online, please contact the syndication department first for permission. New Scientist does not own rights to photos, but there are a variety of licensing options available for use of articles and graphics we own the copyright to.

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Sony invites press to mystery New York event

SAN FRANCISCO: Sony sent out invitations Thursday to a mystery event in New York City on February 20, sparking rumors that the world would get its first look at a new-generation PlayStation videogame console.

Both Sony and Microsoft are expected this year to show off successors to their competing consoles, which have been evolving into home entertainment hubs for films, television, music, social networking and more.

The PlayStation 3 was released in November 2006 and industry trackers believe a successor is on the near horizon.

In January, the number of PS3 units shipped by Sony hit an estimated 77 million units, according to market research firm International Data Corporation.

IDC gaming research manager Lewis Ward predicted at the time of the report that consoles will retain their strongholds in homes while expanding to include other digital entertainment.

"The console ecosystem is in a state of flux since these platforms need to support an ever-growing array of non-gaming features and services at the same time that game distribution and monetization is moving in a digital direction," Ward said.

"It doesn't appear that alternative platforms -- set-top boxes from cable companies, Web-connected smart TVs and so on -- are positioned to materially disrupt the trajectory of the 'big 3' console OEMs in 2013 or 2014."

Videogame industry sales should be bolstered by the arrival of next-generation videogame consoles from Sony and Microsoft, according to Ward.

"With the advent of eighth-generation consoles, starting with the Wii U, historical norms strongly imply that game disk revenue will stop bleeding in 2013 and rise substantively in 2014," he said in the report.

- AFP/ir

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14 killed in blast at offices of Mexican state oil company

By CNN Staff

updated 8:28 PM EST, Thu January 31, 2013

STORY HIGHLIGHTS

• NEW: 14 people were killed and at least 100 are injured, interior minister says


• NEW: Mexico's president says he is heading to the scene to coordinate rescue efforts


• Rescuers are searching for people trapped in the building, one of the city's tallest


• Witness: "People were screaming. ... You could see pieces of the wall falling"

Mexico City (CNN) -- An explosion rocked the offices of Mexico's state oil company Thursday, killing at least 14 people and injuring dozens more, officials said.

At least 100 people were injured in the Mexico City blast, Interior Minister Miguel Angel Osorio Chong told Foro TV.

Dozens of people were trapped in the building after the blast, Foro TV reported.

Osorio Chong said rescuers were searching for survivors in the basement of the office tower, which is one of the city's tallest skyscrapers.

It was unclear what caused the explosion, which occurred in the building's basement, Pemex spokesman Francisco Montano told Notimex.

A large plume of smoke rose near the building after the explosion, and emergency crews swarmed the scene.

"People were screaming. ... You could see pieces of the wall falling to the ground," said Joaquin Borrell Valenzuela, an attorney for the Pemex comptroller's office, who was in a courtyard outside the building at the time of the blast.

Images from the scene showed emergency rescue teams carrying people on stretchers. Authorities said helicopters carried some of the wounded to hospitals.

Mexican President Enrique Pena Nieto expressed his condolences to victims' families and said in a Twitter post Thursday night that he was heading to the office complex to supervise rescue efforts.

The 54-story office tower is nearly 700 feet tall, was built in 1979 and withstood the 8.1 magnitude earthquake that shook Mexico City in 1985, according to Emporis, a company that tracks building data worldwide.

Officials evacuated the building and operations will cease there until further notice, the company said.

CNN's Catherine E. Shoichet, Rafael Romo, Edwin Mesa, Christine Theodorou, Rey Rodriguez and Rene Hernandez and CNNMexico.com contributed to this report.

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14 dead, 80 injured in Mexico oil company blast

Updated 8:25 PM ET

MEXICO CITY An explosion at the main headquarters of Mexico's state-owned oil company in the capital killed 14 people and injured 80 on Thursday as it heavily damaged three floors of the building, sending hundreds into the streets and a large plume of smoke over the skyline.

There were also reports that as many as 30 people were trapped in the debris from the explosion, which occurred in the basement of an administrative building next to the iconic, 52-story tower of Petroleos Mexicanos, or Pemex.

There was no immediate cause given for the blast, which also damaged the first and second floors of the auxiliary building in a busy commercial and residential area. But in an earlier Tweet, Pemex said it had evacuated the building as a precautionary measure because of a problem with the electrical system.

"It was an explosion, a shock, the lights went out and suddenly there was a lot of debris," employee Cristian Obele told Milenio television, adding that he had been injured in the leg. "Co-workers helped us get out of the building."

The tower, where several thousand people work, was evacuated. The main floor and the mezzanine of the auxiliary building, where the explosion occurred, were heavily damaged, along with windows as far as three floors up.

"Right now they're conducting a tour of the building and the area adjacent to the blast site to verify if there are any still trapped so they can be rescued immediately," Interior Ministry spokesman Eduardo Sanchez told Milenio.

A reporter at the scene saw rescue workers trying to free several workers trapped. Television images showed people being evacuated by office chairs, and gurneys. Most of them had injuries likely caused by falling debris.

"We were talking and all of sudden we heard an explosion with white smoke and glass falling from the windows," said Maria Concepcion Andrade, 42, who lives on the block of Pemex building. "People started running from the building covered in dust. A lot of pieces were flying."

Police landed four rescue helicopters to remove the dead or injured. About a dozen tow trucks were furiously moving cars to make more landing room for the helicopters.

Streets surrounding the building were closed as evacuees wandered around, and rescue crews loaded the injured into ambulances.

"I profoundly lament the death of our fellow workers at Pemex. My condolences to their families," President Enrique Pena Nieto said via his Twitter account.

Shortly before the explosion, Operations Director Carlos Murrieta reported via Twitter that the company had reduced its accident rate in recent years. Most Pemex accidents have occurred at pipeline and refinery installations.

A fire at a pipeline metering center in northeast Mexico near the Texas border killed 30 workers in September, the largest-single toll in at least a decade for the company.

6 Photos

Oil company explosion in Mexico City

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What If Undocumented Immigrants Had Voted?

If every undocumented immigrant had cast a vote for President Obama in 2012, he would have won Arizona, Georgia, North Carolina and Texas, and he would have beaten Mitt Romney by nearly 11 percentage points nationally, instead of three.

Only citizens can vote, however, and 11.2 million unauthorized residents didn't get the chance.

But with immigration overhaul on the table, legalizing new Democratic voters looms as a threat for conservatives who don't want to hand their political foes a potential windfall of 11.2 million new voters with the creation of a pathway to citizenship -- and to voting rights -- with a comprehensive bill.

"The fear that many people have is that the Democrats aren't interested in border security, that they want this influx," Rush Limbaugh griped during his Tuesday interview with overhaul champion Sen. Marco Rubio of Florida. "For example, if 70 percent of the Hispanic vote went Republican, do you think the Democrats would be for any part of this legislation?"

New immigration policies could mean in influx of new voters, but Republicans needn't worry about it in the short term.

See Also: Gang of Eight Accelerates Immigration Reform Pace

"Under almost any scenario, it's pretty far in the distance," Jeff Passell, senior demographer at the Pew Hispanic Center, said of the prospect that unauthorized immigrants' gaining voting rights would pump up numbers significantly enough to meaningfully change the U.S. electorate.

Whitney Curtis/Getty Images

And yet, the "influx" wouldn't be negligible: "Realistically, we're talking about potentially adding probably 5 million potential voters or so in 10 years," he said.

Hispanic voters broke 71 percent for Obama in November, and Republican strategists recognize that the party has failed to court Hispanic voters effectively. But depending on how slowly the citizenship line moves, the Republican Party will have a decade or so to shake its anti-Hispanic stigma.

See also: A Glossary for Immigration Reform

"It's a long time coming. You're talking about 15 to 20 years before we're talking about a whole slew of new voters coming into the electorate," said Jennifer Korn, executive director of the Hispanic Leadership Network, who served as Hispanic outreach director for George W. Bush's presidential campaign.

"If Republicans can map out and change their positions with things that Hispanics do support -- on less government, lower taxes, less regulations on small businesses -- then they can really compete for the Hispanic vote over the next 20, 30 years."

There are 11.2 unauthorized immigrants living in the United States, according to the Pew Hispanic Center's estimate. While most are of voting age (Pew estimates just 1 million younger than 18), the deluge of new Democratic voters might not be as substantial as Limbaugh implied.

In other words, it's not as if Democrats will gain 11.2 million votes in the next few years. Here are some things to keep in mind:

• Not All Hispanics Vote for Democrats. Most do, but not all, and voter preferences vary from state to state. In Florida, 60 percent of Hispanic voters backed Obama, according to 2012 exit polls; in Arizona, 74 percent voted for the president. Even if all 11.2 million had voted in 2012, Obama would only have picked up North Carolina if they simply hewed to Hispanic voter trends. Romney still would have carried Arizona, Georgia and Texas, although he would have won Georgia by less than 1 percentage point. (Note: There were no exit polls in Texas or Georgia, and here the national rate provides rough estimates of how results would have changed.)

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Today on New Scientist: 30 January 2013

Timbuktu's precious scientific texts must be saved

Islamist militants in Mali have burned documents that attest to science in Africa before European colonisation - what remains must be protected

Think that massage feels good? Try adding drugs

Nerve bundles that respond to stroking have been identified and chemically activated in mice

How Obama will deliver his climate promise

The US is set to meet - and maybe exceed - Obama's pledge to cut US emissions by 17 per cent, which could give a boost to international climate talks

Minimum booze price will rein in alcohol abuse

Evidence suggests the UK government's proposal to set a minimum price for alcohol could save thousands of lives, and billions of pounds of public money

First real time-travel movies are loopers

Hollywood has played with time travel for decades, but now physicists have the first movies of what travelling to the past actually looks like

Surfer rides highest wave ever caught

Garret McNamara of Hawaii claims to have ridden the highest wave ever caught by a surfer, a 30-metre monster off the coast of Nazaré, Portugal

Infrared laptop trackpad ignores accidental touches

Longpad is a touchpad that extends the full width of your laptop and uses infrared sensors to ignore any unwanted touches

Close call coming: Averting the asteroid threat

With an errant space rock heading this way, just how good are our asteroid defences - and how do we avert the cataclysm?

The right to fight: women at war

The US military has accepted women into combat. What can science tell us about how women deal with being in the line of fire? And are they any different to men?

Earth and others lose status as Goldilocks worlds

Several planets are taking a hit thanks to a redefinition of the habitable zone - the area around a star in which liquid water can theoretically exist

The 10,000-year bender: Why humans love a tipple

Our taste for alcohol results from an evolutionary tussle between humans and yeast - one in which the microbes have often had the upper hand

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Research links acute malnutrition to gut microbes

WASHINGTON: A dearth of calories may not be the only reason some children face acute malnutrition, according to a new study out this week that says the microbes living in our guts may also be to blame.

Within hunger-stricken communities, not all children fare the same. Some develop acute malnutrition, while others, even their brothers and sisters, may stay healthy.

And some children respond well to treatment -- generally a peanut-based nutrient-rich supplement -- while for others, the benefits cease when the treatment does.

To figure out why this happens, researchers studied more than 300 sets of twins in Malawi, where malnutrition is a common childhood ailment, during their first three years of life.

Among half the twin pairs, one or both twins became malnourished over the course of the study.

Even among identical twins, there were cases where one twin -- but not the other -- developed a form of malnutrition called kwashiorkor, associated with swollen bellies, liver damage, skin ulcerations and loss of appetite, in addition to wasting.

That ruled out human genetics as a factor in the disorder, since identical twins share identical genomes.

But the researchers found something else at play: the microbes in the gut that extract nutrients and calories from the diet synthesise vitamins and nutrients and help shape the immune system.

When any of the twins became malnourished, both received treatment to limit food sharing.

In the healthy twin, the gut microbes thrived with the extra food and continued to mature after the treatment ended. But in the severely malnourished twin, the gut microbes stalled out or even regressed by four weeks after the treatment ended.

The findings were further bolstered when the researchers implanted into mice the gut microbes of the healthy and malnourished twins.

Both groups of mice were fed the same diet -- one similar to the nutrient-deficient diet common in Malawi -- but the ones who were transplanted with the malnourished children's microbes dropped weight, while the others did not.

"The gut microbes of malnourished children and malnourished mice do not appear to mature along a normal, healthy trajectory," said senior author Jeffrey Gordon of Washington University's Centre for Genome Sciences and Systems Biology.

"Our results suggest we need to devise new strategies to repair gut microbial communities so these children can experience healthy growth and reach their full potential."

Gordon said the new findings could be a crucial step towards finding better treatment for severely malnourished children.

"It may be that earlier or longer treatment with existing or next-generation therapeutic foods will enhance our ability to repair or prevent the problems associated with malnutrition," he said.

"We are also exploring whether it is possible to supplement the therapeutic food with beneficial gut bacteria from healthy children, as a treatment to repair the gut microbiome," he added.

"We hope that these studies will provide a new way of understanding how the gut microbiome and food interact to affect the health and recovery of malnourished children."

Their study is to be published Thursday in the US journal "Science".

According to UNICEF, a person dies of starvation every 3.6 seconds, and most of the deaths are among children under five.

"Some 300 million children go to bed hungry every day. Of these only eight percent are victims of famine or other emergency situations. More than 90 per cent are suffering long-term malnourishment and micronutrient deficiency," the UN agency says on its website.

-AFP/fl

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'Destroyed' owner of burned club attempts suicide

STORY HIGHLIGHTS

• NEW: A lawyer for the owner blames the fire department


• The club owner who attempted suicide is "emotionally destroyed," police say


• New patients are arriving at hospitals with respiratory symptoms


• The fire department says club was in the process of renewing its license

iReport: Are you there? Share your story.

Santa Maria, Brazil (CNN) -- One of the owners of the Brazilian nightclub that burned down this week, killing 235, tried to take his own life while in custody, police said Wednesday.

Elissandro Spohr is one of four arrested in the aftermath of Sunday's deadly blaze at the Kiss nightclub in Santa Maria, Brazil.

The suicide attempt happened while he was interned and under police guard at a hospital, where he is being treated for smoke inhalation, Santa Maria Police Chief Lylian Carus said.

While taking a shower, Spohr removed the shower hose and tied it to a window, but police discovered him before he placed the other end around his neck, Carus said.

"Everything indicates he was going to commit suicide by hanging," she said. "He's emotionally destroyed."

The residents of Santa Maria, in southern Brazil, have also suffered an emotional toll from the tragedy.

Opinon: We haven't learned from past mistakes

It seems to be all that people in the town talk about, and protestors have taken to the streets demanding justice.

In addition to Spohr, police arrested another owner of the club, Mauro Hoffman. Also in custody are the vocalist for the band performing that night, Marcelo de Jesus dos Santos, and show producer Luciano Bonilha.

During their performance, the band Gurizada Fandangueira used pyrotechnics that they knew were for outdoor use only, police have said. They opted to buy this particular firework because it was cheaper than the indoor-use kind, police said.

Kiss was filled well beyond its legal capacity with the crowd of 2,000 people, who packed the club to hear the band play.

When the pyrotechnics were set off, the ceiling caught fire, state officials said, and the flames spread quickly.

The crowd panicked, breaking into a stampede, and it hit a bottleneck -- the only exit was the front door, down a dark, narrow hallway.

More than 100 of the victims were students at the local Federal University of Santa Maria, the school said.

In addition to the ongoing criminal investigation, Santa Maria's public prosecutor announced that there will be a separate investigation to establish civil liability.

"The introduction of the civil investigation allows us to request documents and produce evidence to establish that kind of responsibility," public prosecutor Cesar Carlan said, according to state media. "We are, at this moment, watching the police work, where the evidence produced will be useful for our own inquiry."

Eerie sounds of cell phones amid disaster

New patients

In the days after the fire, about 20 more people who were at the club sought health services because of symptoms such as tiredness and breathlessness, Brazil's state-run Agencia Brasil news agency reported.

These new patients were hospitalized for observation and may require breathing aids.

Some 82 people remained in intensive care units, with 75 in critical condition, health officials said.

Club was renewing its license

Investigators said they found evidence of faulty and fake fire extinguishers at the club, which had expired fire and municipal licenses. The club's original license permitted just 691 people inside.

However, fire officials said that because the club was in the process of renewing its license, it was not required to be shut down.

Last September, the fire department notified the owners of the club about their expired permit, and in November, the club requested inspection for a renewal, fire official Sergio Roberto de Abreu said, according to Agencia Brasil.

The renewal request was pending at the time of the fire.

A lawyer for Spohr, the owner, not only said the club was operating legally, but also blamed the fire department for the mass casualties.

"It was a disastrous and poor operation by the fire department," attorney Jader Marques said, according to Agencia Brasil.

The firefighters weren't wearing proper masks and lacked proper equipment, he said. "Worse than that, the firefighters, feeling powerless, used civilians" to assist in the rescue.

Deadly blazes: Nightclub tragedies in recent history

Shasta Darlington reported from Santa Maria, and Mariano Castillo and Umaro Djau from Atlanta. CNN's Helena de Moura contributed from Santa Maria

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Obama: "No doubt" Congress will pass immigration, gun bills

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Obama: "No doubt" gun, immigration bills will pass in coming months

There's more bipartisan support in Congress for comprehensive immigration reform than gun control legislation, President Obama said tonight during an interview with Univision, but qualified that even under his proposal, illegal immigrants shouldn't be harboring expectations that they'll be granted citizenship "manana."

"Even under our proposal, this is not a situation where overnight, suddenly people all find themselves as citizens," Mr. Obama told the Spanish-language television network. "They're going to have to go to the back of the line. We're going to have to clear out the existing line, backlogs we have in terms of illegal immigrants, because they did it the right way. We shouldn't punish them for breaking the law.

"...What we don't want to do is to create some vague prospect in the future that somehow comprehensive immigration reform that includes a pathway to citizenship will happen manana," he continued, chuckling softly at the somewhat awkward injection of the Spanish word for "tomorrow." "But we have to put that in place at the outset, and make sure people are clear that this pathway is real and not just a fantasy for the future."

Asked whether he was in a standoff with Sen. Marco Rubio, R-Fla., the son of Cuban immigrants who has said he will not support a bill that does not put border control ahead of a path to citizenship, Mr. Obama said no, but pointed out that the number of people crossing the border illegally has dropped "about 80 percent since 2000."

On Tuesday, the president delivered a speech in Las Vegas outlining his immigration plan and applauding a bipartisan group of eight senators that has offered up proposals as well. In an interview today with another Spanish language network, Telemundo, he specified that he's hoping immigration reform that includes a pathway to citizenship can be passed in the next six months, but "certainly this year."

Meanwhile, despite facing more resistance from the right on tightening gun laws, he said he has "no doubt" that Congress will be able to put through legislation on gun control, as well as immigration.

Play Video

Obama: Legalization for illegal immigrants won't happen "ma?ana"

"On the gun issue, you're starting to see gun owners, people who traditionally have opposed gun control, saying, 'You know what, when 20 of our children are shot by somebody who is disturbed, and when it is that easy to get these high-clip magazines that can fire off hundreds of shots in a few minutes, then it's time for us to do better job on background checks, to get control of these magazine clips, to really crack down on gun trafficking," Mr. Obama said in the Univision interview.

The Senate Judiciary Committee today held the first congressional hearing on gun violence since last month's massacre at a Newtown, Conn., elementary school, that left 20 children and six adults dead. Star witnesses included former Rep. Gabrielle Giffords, D-Ariz., who survived a shot to the head two years ago during an assassination attempt that left six people dead, and her husband on one side, and NRA CEO Wayne LaPierre on the other.

Both gun control and immigration "will end up generating some opposition," the president said. "There will be passions on both sides. But I'm generally encouraged that the Senate seems to be having a serious conversation about these issues."

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Obama Confident Immigration Reform Will Pass

President Barack Obama expressed confidence on Wednesday that he would sign comprehensive immigration reform into law by the end of this year.

In an interview with Univision's Maria Elena Salinas, Obama explained that significant details of a bill still must be worked out by lawmakers, including the structure of a pathway to citizenship for many of the 11 million undocumented immigrants. But Obama said that the progress made by a bipartisan group of lawmakers in the Senate has given him hope that a deal can get done.

See Also: What Will Be Obama's Immigration Legacy?

When asked by Salinas if we will have immigration reform by the end of the year, Obama said, "I believe so."

"You can tell our audience, 'Sí, se puede?'" Salinas asked.

"Sí, se puede," Obama responded.

Later in the interview, Obama said that he hopes a bill could be passed as early as this summer.

But cognizant of deep divisions a topic like immigration has sewn in the past, Obama said that's contingent on bipartisan negotiations continuing to proceed well.

"The only way this is going to get done is if the Republicans continue to work with Democrats in Congress, in both chambers, to get a bill to my desk," he said. "And I'm going to keep on pushing as hard as I can. I believe that the mood is right."

Although the president threatened to introduce his own bill if negotiations in Congress stall during his speech in Las Vegas, Nevada, on Tuesday, he said he is content to let lawmakers hash out the details among themselves for the time being.

"If they are on a path as they have already said, where they want to get a bill done by March, then I think that's a reasonable timeline and I think we can get that done. I'm not going to lay down a particular date because I want to give them a little room to debate," he said. "If it slips a week, that's one thing. If it starts slipping three months, that's a problem."

The president's principles and the Senate's principles on immigration broadly align with one another, but there are still thorny issues that could spark a division between Obama and Republicans, such as the pathway to citizenship.

The Senate's path to citizenship would allow many undocumented immigrants to obtain legal status immediately upon passage of the law. But their ability to then seek legal permanent residency would be contingent upon the U.S.-Mexico border being deemed secure. Sen. Marco Rubio (R-Fla.), a member of the bipartisan "Gang of Eight" on immigration, has been particularly vocal in stating that border security is a precondition for gaining legal permanent residence, and then citizenship.

While the White House has said that it is withholding judgment on that plan until actual legislative language is drafted, Obama said that he wants a bill that makes it clear from the outset that undocumented immigrants eligible to earn their way to citizenship can eventually obtain it.

"What we don't want to do is create some kind of vague prospect in the future that somehow comprehensive immigration reform that includes a pathway to citizenship will happen, you know, mañana," Obama said. "We want to make sure we are very clear this legislation provides a real pathway."

The president said that enhancing border security measures and workplace enforcement provisions are a part of his plan, as well as the Senate's, and cited his administration's efforts to bulk up border security during the past four years, saying that illegal crossings have dropped 80 percent since 2000.

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Today on New Scientist: 29 January 2013

Creatures of the air caught in the mist

Photographer Todd Forsgren uses mist nets to briefly ensnare a variety of tropical South American birds before releasing them, unharmed

Drug reduces enlarged prostate with few side effects

Shrinking enlarged prostates by blocking a potent growth factor could avoid problems - such as erectile dysfunction - that accompany current treatments

Climate change blamed for Australia's extreme weather

Floods have hit the east coast of Australia before recent bush fires have been put out, giving people a taste of climate change's possible consequences

Midnight sun: How to get 24-hour solar power

Rust may be the scourge of electronics but it could help solar power run all night

The most beautiful explanations

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Netted Costa Rican birds pay small price for art

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Iran launches monkey into space

The Iranian Space Agency claims to have launched a rhesus monkey into space on a sub-orbital flight, and returned it safely to Earth

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Tibetans in India launch drive against China

NEW DELHI: The Tibetan government-in-exile in India on Tuesday announced plans for a four-day campaign to bring global pressure on China in a bid to end a string of self-immolations in their Himalayan homeland.

Penpa Tsering, speaker of the exiled Tibetan parliament based in the northern Indian town of Dharamshala, said the drive would include rallies and meetings and begin in New Delhi on Wednesday.

"The situation is getting more and more grim," Tsering said at a joint news conference with Lobsang Sangay, who in 2011 took over political duties from revered Buddhist spiritual leader, the Dalai Lama, and was named prime minister.

The two leaders said 99 Tibetans had set themselves on fire between 2009 and January 22 this year in protest against Chinese rule in Tibet. Of that number, the government-in-exile says 83 have died.

"Instead of trying to address the main causes as to why self-immolations are taking place, as to why Tibetans are protesting in various other forms, the Chinese government has resorted to a blame game," Sangay said.

The Havard-educated scholar said India, home to tens of thousands of Tibetan exiles, "ought to speak out forcefully on Tibet".

The four-day campaign will call for visits to Tibet by UN fact-finding teams and the publication of details of human rights discussions between Beijing and foreign powers, Sangay said.

He said the Tibetan government as well as the parliament, which has been based in Dharamshala since the Dalai Lama fled after a failed uprising against China in 1959, were determined to highlight "repression of Tibetans in Tibet".

Both the Dalai Lama and the prime minister have appealed to Tibetans not to resort to self-immolation.

"We are against drastic action but we must highlight it (the situation in Tibet) to the international community," Sangay said.

Many Tibetans in China accuse the government of religious repression and eroding their culture, as the country's majority Han ethnic group increasingly moves into historically Tibetan areas.

China rejects that, saying Tibetans enjoy religious freedom. Beijing also points to the huge ongoing investment that it says has brought modernisation and a better standard of living to Tibet.

-AFP/fl

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Tearful Newtown dad: No new gun laws

By David Ariosto, CNN

updated 8:09 PM EST, Tue January 29, 2013

STORY HIGHLIGHTS

• Mark Mattioli, a parent of a Sandy Hook victim, says there are more than enough gun laws


• "The time is now" to strengthen gun laws, says Veronique Pozner, another parent


• Crowd interrupts the statement of a parent of a slain child


• Connecticut has some of the nation's strictest gun laws

(CNN) -- His voice wavering, Mark Mattioli wiped away tears as he recalled the day his 6-year-old son died when a man wielding an AR-15 semi-automatic rifle broke into Sandy Hook Elementary School and began shooting.

His son, James, was among the 20 children and seven adults killed by Adam Lanza on December 14 in Newtown, Connecticut -- an event so horrific that it has since spawned a federal task force and kick-started a national conversation about gun control.

But unlike the handful of other parents who testified Monday at the emotionally charged hearing in Hartford, Connecticut, Mattioli said there are more than enough gun laws on the books. He called instead for a closer look at mental health policies.

Why new laws could miss America's bigger gun problem

"I don't care if you named it 'James' law,' I don't want (another law)," he said during the first of a series of meetings set up by a legislative task force assigned to review the state's gun laws.

Reaction to Newtown school killings

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"I think there's much more promise for a solution in identifying, researching and creating solutions along the lines of mental health."

Connecticut's medical examiner said he was told that Lanza, 20, had Asperger's syndrome. Research has not shown a link between that condition and violence.

The hearing drew hundreds to the Connecticut state house and revealed the sharp divide in public opinion over what should happen next in the massacre's aftermath.

"The time is now," said Veronique Pozner, whose son, Noah, was also killed, referring to a strengthening of the nation's gun laws.

Sandy Hook probe to extend until summer

With a framed photo of her slain 6-year-old propped up beside her, Pozner called on Connecticut to become "an agent for change" across the country.

During her testimony, she held up a crayon drawing that Noah once scrawled on Thanksgiving.

"I am thankful for the life I live," he wrote.

At one point during the hearing, Neil Heslin, father of a 6-year-old boy named Jesse who was also gunned down that day, asked why the public needed assault weapons and high-capacity magazines.

Some people in the crowd then interrupted his statement and shouted the "Second Amendment shall not be infringed."

"We're not living in the Wild West. We're not a Third World nation," Heslin continued. "We have the strongest military in the world. We don't need to defend our homes with weapons like that."

Connecticut already has some of the nation's strictest gun laws.

Gov. Dannel Malloy, a first-term Democrat, has also vowed to address the factors that led to last month's massacre and set up a 16-member panel of experts to come up with recommendations. It includes experts who reviewed policies after mass shootings in Colorado and at Virginia Tech.

The panel must meet a March 15 deadline for its initial report, which Malloy is expected to use in drafting initiatives aimed at reducing gun violence.

Newtown parents learn comforting details about son's death

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