Hints of new dark force seen in galactic smash-ups

Colliding clusters of galaxies may hold clues to a mysterious dark force at work in the universe. This force would act only on invisible dark matter, the enigmatic stuff that makes up 86 per cent of the mass in the universe.

Dark matter famously refuses to interact with ordinary matter except via gravity, so theorists had assumed that its particles would be just as aloof with each other. But new observations suggest that dark matter interacts significantly with itself, while leaving regular matter out of the conversation.

"There could be a whole class of dark particles that don't interact with normal matter but do interact with themselves," says James Bullock of the University of California, Irvine. "Dark matter could be doing all sorts of interesting things, and we'd never know."

Some of the best evidence for dark matter's existence came from the Bullet cluster, a smash-up in which a small galaxy cluster plunged through a larger one about 100 million years ago. Separated by hundreds of light years, the individual galaxies sailed right past each other, and the two clusters parted ways. But intergalactic gas collided and pooled on the trailing ends of each cluster.

Mass maps of the Bullet cluster showed that dark matter stayed in line with the galaxies instead of pooling with the gas, proving that it can separate from ordinary matter. This also hinted that dark matter wasn't interacting with itself, and was affected by gravity alone.

Musket shot

Last year William Dawson of the University of California, Davis and colleagues found an older set of clusters seen about 700 million years after their collision. Nicknamed the Musket Ball cluster, this smash-up told a different tale. When Dawson's team analysed the concentration of matter in the Musket Ball, they found that galaxies are separated from dark matter by about 19,000 light years.

"The galaxies outrun the dark matter. That's what creates the offset," Dawson said. "This is fitting that picture of self-interacting dark matter." If dark matter particles do interact, perhaps via a dark force, they would slow down like the gas.

This new picture could solve some outstanding mysteries in cosmology, Dawson said this week during a meeting of the American Astronomical Society in Long Beach, California. Non-interacting dark matter should sink to the cores of star clusters and dwarf galaxies, but observations show that it is more evenly distributed. If it interacts with itself, it could puff up and spread outward like a gas.

So why doesn't the Bullet cluster show the same separation between dark matter and galaxies? Dawson thinks it's a question of age – dark matter in the younger Bullet simply hasn't had time to separate.

New window

The idea complements a previous study that saw evidence for dark forces at work in the Bullet cluster. In 2007 Glennys Farrar of New York University and colleagues said that the smaller cluster was moving too fast for gravity alone to be responsible. They suggested that some mysterious force related to dark matter might be hurrying it along.

Still, two clusters is not a lot to go on. Dawson, Bullock and colleagues are following up with about 20 more galactic collisions to see if they show any unusual behaviours. "I really think that we're almost to the point where we have enough observational data in hand," Dawson said. "We could close the book on self-interacting dark matter."

If the new force does exist, we might soon be able to see its effects on things influenced by dark matter, such as the behavior of black holes or the masses of the first stars, says Douglas Finkbeiner of Harvard University in Cambridge, Massachusetts, who was not involved in the new study.

"The simple thing isn't always the right thing, so I really appreciate that Will is trying to look into these other possibilities," he says.

Louis Strigari of Stanford University in California agrees. "Self-interacting dark matter is worth pursuing because we're still very ignorant," he said. "We're desperate to understand what dark matter is, so any new window is welcome."

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China's 2012 trade surplus surges 48%

BEIJING: China's trade surplus surged 48.1 percent to $231.1 billion in 2012 from the previous year, though total trade volume grew at a much slower pace, official data showed on Thursday.

Exports from the world's second-largest economy rose 7.9 percent to $2.05 trillion, while imports increased 4.3 percent to $1.82 trillion, the national customs bureau said.

China's trade volume, or the total of exports and imports, grew 6.2 percent in 2012, well below the government's target of about 10 percent.

Customs spokesman Zheng Yuesheng said 2012's performance came "despite a sharply slowing world economic recovery, weak international market demand and rather big downside pressure on the domestic economy".

Zheng told reporters: "China's foreign trade continued to grow steadily and made further progress in improving quality, increasing profits and optimising structure."

- AFP/al

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Latino should have played lead in 'Argo'

Ben Affleck plays the lead role of Tony Mendez in "Argo," which he also directed.

STORY HIGHLIGHTS

• Oscar nominations on Thursday, and Ben Affleck expected to get one for "Argo"


• Affleck plays real-life Latino who helped diplomats escape in Iran hostage crisis


• Ruben Navarrette: Affleck should have used a Latino actor to play role


• He says it cheats actor out of a job, and the Latino community out of a hero's story

San Diego, California (CNN) -- The upcoming Oscars are no stranger to causes or controversy. And this year, there is a strong dose of both surrounding the film "Argo" -- and its star and director, Ben Affleck.

This controversy bubbled up when the buzz started that Affleck could get an Academy Award nomination for best director when the announcements are made Thursday.

"Argo" tells how an ingenious and daring CIA agent helped orchestrate the rescue of six U.S. diplomats from Tehran during the Iran hostage crisis of 1979-1980. In November 1979, about 300 Islamic students stormed the U.S. Embassy and 66 Americans were taken hostage. But six U.S. diplomats escaped and were hidden at the Canadian Embassy by the Canadian ambassador and his wife.

Ruben Navarrette Jr.

The CIA agent -- Antonio "Tony" Mendez, played by Affleck -- successfully led the mission to evacuate the Americans, which involved Mendez and his associates posing as a Canadian film crew that was eager to make a movie in Iran.

The real Tony Mendez was awarded the Intelligence Star for Valor, and other honors, for leading the rescue. He later wrote a memoir, detailing the events in Tehran.

"Argo" is loosely based on Mendez's book. Better make that, very loosely based. As movie critics and others have pointed out since the movie opened a few months ago, the filmmakers took lots of dramatic license with the story. Mendez's role is played up, while that of the Canadians who helped hide and protect the Americans is played down. Some scenes depicted in the film never happened. Some characters are composites of several real people.

In other words, it's what you would expect from a Hollywood feature film based on a historical event. It's not a documentary. It's meant to be taken with a grain of salt, and to be entertaining.

Still, there are some Latinos -- in and out of Hollywood -- who think that, in this case, the filmmakers, and especially Affleck, pushed the concept of creativity too far. They say Affleck missed an opportunity to put more Latinos on screen. Moreover, they say, Affleck improperly claimed, for himself, the choice role of Mendez when he should have cast a Latino actor instead. They insist that the director didn't just cheat a Latino out of an acting job but the Latino community out of a feel-good story about one of their own who won acclaim for a heroic deed.

The critics are right, and their cause is just. Affleck should have tried to cast a Latino to play Mendez. That's common sense, and it would have made "Argo" a better movie. Affleck also didn't do himself any favors by trying to dismiss the criticism with a glib remark that essentially said that it really doesn't matter that the actor playing Mendez isn't Latino since Mendez himself isn't, shall we say, overtly Latino.

At a recent forum intended to publicize the film, Affleck responded to a question from the audience about the controversy by noting that "Tony does not have, I don't know what you would say, a Latin/Spanish accent" and that "You wouldn't necessarily select him out of a line of 10 people and go 'This guy's Latino.' "

Ouch. At least Affleck didn't slip and say "line up."

"So I didn't feel as though I was violating something," he said, "where, here's this guy who's clearly ethnic in some way and it's sort of being whitewashed by Ben Affleck the actor."

Johnny Depp set a better example. Several months ago, Depp turned down the role of Mexican revolutionary Francisco "Pancho" Villa in another film. He said that the role should go to a Latino. I praised Depp at the time for showing that, besides being a great actor, he is also a person of character.

The exclusion of Latinos from Hollywood is an old story. This is still a black and white world, where Latinos rarely get cast in the leading role. We're the gardeners and housekeepers, the gang leader and drug dealers, the nannies and farm workers. That's it. There has been some progress, of course. But not enough -- not when you have a Latina in the Supreme Court, three Latinos in the U.S. Senate, and Latinos heading Fortune 500 companies.

I could blame the environment of Southern California, in which most Hollywood writers, producers and directors live and spend most of their time. When they get up in the morning and drive to work, most Latinos they encounter are subservient. We clean their homes, cook their breakfast, trim their hedges, park their cars and otherwise help them get through the day.

Still, you can push this argument too far, and wind up going down a dangerous path -- one that ultimately sets back the greater cause of trying to get television networks and film studios to create a broader range of meatier roles for Latino actors and actresses.

After all, it's a short walk from saying that a director should have cast a Latino to play a Latino to arguing that only Latinos can play Latinos. And, if that's the argument, then on what moral high ground do Latinos stand to also push -- as we should -- for Latino actors and actresses to be considered for generic and mainstream roles that could have gone to white actors? We can't have it both ways.

Even if Latinos succeed in making their point about this one director and this one movie, it could backfire. We could win this battle, and still lose the war.

But before Latinos can be fully integrated into America and not considered outsiders, we have to take every opportunity to push for inclusion and fairness. And acknowledging that Latinos have the skills to play themselves is a good start.

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The opinions in this commentary are solely those of Ruben Navarrette.

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Mom who shot intruder inspires gun control foes

LOGANVILLE, Ga.A Georgia mother who shot an intruder at her home has become a small part of the roaring gun control debate, with some firearms enthusiasts touting her as a textbook example of responsible gun ownership.

Melinda Herman grabbed a handgun and hid in a crawl space with her two children when a man broke in last week and approached the family at their home northeast of Atlanta, police said. Herman called her husband on the phone, and with him reminding her of the lessons she recently learned at a shooting range, Herman opened fire, seriously wounding the burglary suspect.

The National Rifle Association tweeted a link to a news story about the shooting, and support poured in from others online, hailing Herman as a hero. The local sheriff said he was proud of the way she handled the situation.

"This lady decided that she wasn't going to be a victim, and I think everyone else looks at this and hopes they have the courage to do what she done," Walton County Sheriff Joe Chapman said Wednesday.

Herman was working from home Friday when she saw a man walk up to the front door. She told police he rang the doorbell twice and then over and over again. He went back to his SUV, got something out and walked back toward the house, a police report said.

Herman took her 9-year-old son and daughter into an upstairs bedroom and locked the door. They went into bathroom and she locked that door, too. She got her handgun from a safe, the report said, and hid with her children. At some point, she called her husband, who kept her on the line and called 911 on another line.

In a 10-minute 911 recording released by the Walton County Sheriff's Office, Donnie Herman calmly explained what was happening to a dispatcher. His part of the conversation with his wife was also recorded.

"Is he in the house, Melinda? Are you sure? How do you know? You can hear him in the house?" Donnie Herman said.

His wife told him the intruder was coming closer.

"He's in the bedroom? Shh, shh, relax. Just remember everything that I showed you, everything that I taught you, all right?" Donnie Herman told his wife, explaining later to the dispatcher that he had recently taken her to a gun range.

It wasn't clear from the recording exactly when they went to range and Donnie Herman told The Associated Press on Wednesday the family didn't want to talk about the shooting.

After Donnie Herman told his wife police were on the way, he started shouting: "She shot him. She's shootin' him. She's shootin' him. She's shootin' him. She's shootin' him."

"OK," the dispatcher responded.

"Shoot him again! Shoot him!" Donnie Herman yelled. He told the dispatcher he heard a lot of screaming, but he seems to get increasingly worried when he doesn't hear anything from his wife.

Melinda Herman told police she started shooting the man when he opened the door to the crawl space. The man pleaded with her to stop, but she kept firing until she had emptied her rounds, she told police. She then fled to a neighbor's house with her children.

The man drove away in his SUV. Police found the SUV on another subdivision street and discovered a man bleeding from his face and body in a nearby wooded area. Police identified the suspect as 32-year-old Paul Slater of Atlanta.

Chapman said the hospital asked him not to comment on Slater's condition, but he said he is not certain Slater will survive.

CBS Atlanta affiliate WGCL-TV reports Slater is on a ventilator.

Authorities have a warrant but haven't formally arrested Slater yet. They plan to charge him with burglary, possession of tools for the commission of a crime and aggravated assault, Walton County sheriff's Capt. Greg Hall said.

A phone number for Slater was not listed and it was not clear whether he has an attorney.

Authorities believe Slater targeted a home in another local subdivision but left when confronted by the homeowner, Chapman said.

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Flu Kills 4 Seniors, Sickens 700 in Boston

An early and nasty flu season has prompted a public health emergency in Boston, where health officials say 700 people have been diagnosed with the cold-weather virus. Four Bostononians -- all elderly -- have died from flu.

"This is the worst flu season we've seen since 2009, and people should take the threat of flu seriously," Boston Mayor Thomas Menino said in a statement.

This time last year the city had seen only 70 cases of influenza, The Associated Press reported. And with flu activity likely to extend into March or even April, the number will only grow.

Menino said the city is working with health care centers to offer free flu vaccines, and he urged anyone with flu-like symptoms to stay home from work or school.

"This is not only a health concern, but also an economic concern for families," he said in the statement. "I'm urging residents to get vaccinated if they haven't already."

Eighteen people have died from flu in Massachusetts, one of 41 states battling widespread influenza outbreaks. Emergency rooms across the country have been overwhelmed with flu patients, turning away some of them and others with non-life-threatening conditions for lack of space.

The proportion of people seeing their doctor for flu-like symptoms jumped to 5.6 percent from 2.8 percent in the past month, according to the CDC.

U.S. Emergency Rooms Inundated With Flu Patients Watch Video

Earliest Flu Season in a Decade: 80 Percent of Country Reports Severe Symptoms Watch Video

Northwestern Memorial Hospital in Chicago reported a 20 percent increase in flu patients every day. Northwestern Memorial was one of eight hospitals on bypass Monday and Tuesday, meaning it asked ambulances to take patients elsewhere if they could do so safely.

Dr. Besser's Tips to Protect Yourself From the Flu

Most of the hospitals have resumed normal operations, but could return to the bypass status if the influx of patients becomes too great.

"Northwestern Memorial Hospital is an extraordinarily busy hospital, and oftentimes during our busier months, in the summer, we will sometimes have to go on bypass," Northwestern Memorial's Dr. David Zich said. "We don't like it, the community doesn't like it, but sometimes it is necessary."

A tent outside Lehigh Valley Hospital in Salisbury Township, Pa., was set up to tend to the overflowing number of flu cases.

A hospital in Ohio is requiring patients with the flu to wear masks to protect those who are not infected.

State health officials in Indiana have reported seven deaths. Five of the deaths occurred in people older than 65 and two younger than 18. The state will release another report later today.

Doctors are especially concerned about the elderly and children, where the flu can be deadly.

"Our office in the last two weeks has exploded with children," Dr. Gayle Smith, a pediatrician in Richmond, Va., said

It is the earliest flu season in a decade and, ABC News Chief Medical Editor Dr. Besser says, it's not too late to protect yourself from the outbreak.

"You have to think about an anti-viral, especially if you're elderly, a young child, a pregnant woman," Besser said.

"They're the people that are going to die from this. Tens of thousands of people die in a bad flu season. We're not taking it serious enough."

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Pruney fingers give us better grip underwater

WHY do our fingers do prune impressions when soaked? It could be an adaptation that gives us better grip underwater.

Fingers and toes wrinkle in water after about 5 minutes due to the constriction of blood vessels. This reduction in volume pulls the skin inward, but as the skin's surface area cannot change, it wrinkles. A study in 2011 showed that wrinkles form a pattern of channels that divert water away from the fingertip – akin to rain treads on tyres. The team thought that this could aid grip.

To find out, Tom Smulders and his team at Newcastle University, UK, timed people as they transferred wet or dry objects from one box to another with and without wrinkled fingers.

With wrinkles, wet objects were transferred about 12 per cent faster than with unwrinkled fingers. The time it took to transfer dry objects was the same regardless of wrinkles.

So why aren't our digits always prune-like? "With wrinkles, less of your skin surface touches the object, so there may be issues of sensitivity," Smulders suggests.

Journal reference: Royal Society Biology Letters, DOI: 10.1098/rsbl.2012.0999.

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Relatives sob as US massacre 911 calls heard in court

CENTENNIAL, Colorado: Relatives wept in court Tuesday as frantic 911 calls were played from a US theater shooting that killed 12 people last year, as prosecutors closed their case for the alleged gunman to face trial.

The court heard how suspected killer James Holmes purchased more than 6,000 rounds of ammunition in the months before last July's shooting in Colorado, and rigged up elaborate booby-traps at his apartment.

Defense lawyers will call witnesses Wednesday, the third day of hearings, to decide if there is enough evidence for Holmes to go on trial. They are expected to highlight his mental instability as a possible reason he should not do so.

In the first of 41 harrowing emergency calls made in a 10-minute period in Colorado, 30 loud booms could be heard in less than half-a-minute, making it difficult for the 911 dispatcher to distinguish what was being said.

In another, six minutes after the first call was logged at 12:38 am, 14-year-old Kaylan Bailey told the emergency operator her two cousins had been shot, and that one of them did not appear to be breathing.

"We need to start CPR (cardio-pulmonary resuscitation) on your cousin who's not breathing," said the operator.

"I can't hear you," responded Bailey, as chaos unfolded in the theater in Aurora, where Holmes -- clad in body armor and a mask -- threw at least one smoke-bomb type device before opening fire in the early hours of July 20.

The hearings opened Monday with officers choking back tears as they recalled scenes after the slaughter, which left 12 dead and 58 injured by gunshots at a packed midnight screening of the Batman film "The Dark Knight Rises."

The Aurora massacre revived the perennial US debate over gun control -- an issue re-ignited even more intensely by last month's shooting of 20 young children at a Connecticut elementary school.

Tuesday's hearing heard testimony from federal firearms supervisor Steven Beggs that Holmes made at least 16 purchases from May to July 2012 including four firearms, incendiary devices and almost 6,300 rounds of ammunition.

Holmes's lawyers could argue that he is mentally unfit to stand trial.

Defense attorney Tamara Brady asked Beggs: "Is there any process in Colorado to screen out purchases by a severely mentally ill person?"

"No," replied Beggs, who detailed the purchases made online and in person by Holmes.

FBI bomb technician Garrett Gumbinner said Holmes told investigators after being arrested that he had booby-trapped his apartment, in an attempt to draw emergency responders away from the theater shooting site.

Officers found a trip wire at the door of his home, rigged to set off flame and sparks that would catch the gasoline-soaked carpet and go on fire.

There were six-inch fireworks shells filled with improvised thermite, a hot-burning explosive.

"You can't put it out with water," Gumbinner told judge William Sylvester. There were also three containers of improvised napalm, 11 bottles of gasoline and other chemicals intended to act as fire accelerants, he said.

There were three systems in the apartment intended to initiate the explosive devices, including one linked to a trash bag near the apartment dumpster by a remote control.

Curious behavior by Holmes during police questioning was also recounted: At one point he tried to stick a metal staple into a power socket. At another he played hand puppets with gloves that had been put on him to preserve evidence.

Prosecutors are trying to build up their case that the shootings were a premeditated act of mass murder, and identifying Holmes as the lone shooter.

Supporting that strategy, Aurora police officer Tom Welton testified that Holmes made postings on two dating websites earlier in July, asking "Will you visit me in prison?"

Prosecutors wrapped up their evidence in the hearing by listing all the victims by name, the injuries they suffered and the charges -- more than 160 in all -- filed on behalf of each.

-AFP/ac

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Opinion: Time for tough talk with Karzai

The last time Presidents Obama and Karzai met was in May in Kabul, when they signed a pact regarding U.S. troop withdrawal.

STORY HIGHLIGHTS

• Afghan President Karzai meeting with President Obama in Washington this week


• Felbab-Brown: Afghan politics are corrupt; army not ready for 2014 troop pullout


• She says Taliban, insurgents, splintered army, corrupt officials are all jockeying for power


• U.S. needs to commit to helping Afghan security, she says, and insist corruption be wiped out

Editor's note: Vanda Felbab-Brown is a senior fellow in foreign policy at the Brookings Institution. Her latest book is "Aspiration and Ambivalence: Strategies and Realities of Counterinsurgency and State-Building in Afghanistan."

(CNN) -- Afghan President Hamid Karzai is meeting this week with President Obama in Washington amid increasing ambivalence in the United States about what to do about the war in Afghanistan.

Americans are tired of the war. Too much blood and treasure has been spent. The White House is grappling with troop numbers for 2013 and with the nature and scope of any U.S. mission after 2014. With the persisting corruption and poor governance of the Afghan government and Karzai's fear that the United States is preparing to abandon him, the relationship between Kabul and Washington has steadily deteriorated.

As the United States radically reduces its mission in Afghanistan, it will leave behind a stalled and perilous security situation and a likely severe economic downturn. Many Afghans expect a collapse into civil war, and few see their political system as legitimate.

Karzai and Obama face thorny issues such as the stalled negotiations with the Taliban. Recently, Kabul has persuaded Pakistan to release some Taliban prisoners to jump-start the negotiations, relegating the United States to the back seat. Much to the displeasure of the International Security Assistance Force, the Afghan government also plans to release several hundred Taliban-linked prisoners, although any real momentum in the negotiations is yet to take place.

Vanda Felbab-Brown

Washington needs to be careful that negotiations are structured in a way that enhances Afghanistan's stability and is not merely a fig leaf for U.S. and NATO troop departure. Countering terrorism will be an important U.S. interest after 2014. The Taliban may have soured on al Qaeda, but fully breaking with the terror group is not in the Taliban's best interest. If negotiations give the insurgents de facto control of parts of the country, the Taliban will at best play it both ways: with the jihadists and with the United States.

Negotiations of a status-of-forces agreement after 2014 will also be on the table between Karzai and Obama. Immunity of U.S. soldiers from Afghan prosecution and control over detainees previously have been major sticking points, and any Afghan release of Taliban-linked prisoners will complicate that discussion.

Karzai has seemed determined to secure commitments from Washington to deliver military enablers until Afghan support forces have built up. The Afghan National Security Forces have improved but cannot function without international enablers -- in areas such as air support, medevac, intelligence and logistical assets and maintenance -- for several years to come. But Washington has signaled that it is contemplating very small troop levels after 2014, as low as 3,000. CNN reports that withdrawing all troops might even be considered.

Everyone is hedging their bets in light of the transition uncertainties and the real possibility of a major security meltdown after 2014. Afghan army commanders are leaking intelligence and weapons to insurgents; Afghan families are sending one son to join the army, one to the Taliban and one to the local warlord's militia.

Patronage networks pervade the Afghan forces, and a crucial question is whether they can avoid splintering along ethnic and patronage lines after 2014. If security forces do fall apart, the chances of Taliban control of large portions of the country and a civil war are much greater. Obama can use the summit to announce concrete measures -- such as providing enablers -- to demonstrate U.S. commitment to heading off a security meltdown. The United States and international security forces also need to strongly focus on countering the rifts within the Afghan army.

Assisting the Afghan army after 2014 is important. But even with better security, it is doubtful that Afghanistan can be stable without improvements in its government.

Afghanistan's political system is preoccupied with the 2014 elections. Corruption, serious crime, land theft and other usurpation of resources, nepotism, a lack of rule of law and exclusionary patronage networks afflict governance. Afghans crave accountability and justice and resent the current mafia-like rule. Whether the 2014 elections will usher in better leaders or trigger violent conflict is another huge question mark.

Emphasizing good governance, not sacrificing it to short-term military expediencies by embracing thuggish government officials, is as important as leaving Afghanistan in a measured and unrushed way -- one that doesn't jeopardize the fledgling institutional and security capacity that the country has managed to build up.

Karzai has been deaf and blind to the reality that reducing corruption, improving governance and allowing for a more pluralistic political system are essential for Afghanistan's stability. His visit provides an opportunity to deliver the message again -- and strongly.

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The opinions in this commentary are solely those of Vanda Felbab-Brown.

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AP: Gov. Richardson pressing N. Korea to open Internet

Former New Mexico Gov. Bill Richardson is interviewed by journalists after arriving at Pyongyang International Airport in Pyongyang, North Korea, Monday, Jan. 7, 2013. Richardson arrived in the North Korean capital with Executive Chairman of Google Eric Schmidt, and called the trip a private humanitarian visit. / AP Photo/Kim Kwang Hyon

PYONGYANG, North Korea Former New Mexico Gov. Bill Richardson said Wednesday that his delegation is pressing North Korea to put a moratorium on missile launches and nuclear tests and to allow more cell phones and an open Internet for its citizens.

12 Photos

Google exec. visits North Korea

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Bill Richardson, Eric Schmidt arrive in North Korea

Richardson told The Associated Press in an exclusive interview in Pyongyang that the group is also asking for fair and humane treatment for an American citizen detained in North Korea.

"The citizens of the DPRK (North Korea) will be better off with more cell phones and an active Internet. Those are the three messages we've given to a variety of foreign policy officials, scientists" and government officials, Richardson said.

He is accompanied by Google Executive Chairman Eric Schmidt and Google Ideas think tank Director Jared Cohen on what Richardson has called a private, humanitarian trip. Schmidt, who is the highest-profile U.S. business executive to visit North Korea since leader Kim Jong Un took power a year ago, has not spoken publicly about the reasons behind the journey to North Korea.

The high-profile visit comes just weeks after North Korea launched a long-range rocket to send a satellite into space. Washington has condemned the launch as a banned test of missile technology.

Schmidt, who oversaw Google's expansion into a global Internet giant, speaks frequently about the importance of providing people around the world with Internet access and technology. Google now has offices in more than 40 countries, including all three of North Korea's neighbors: Russia, South Korea and China, another country criticized for systematic Internet censorship.

He and Cohen have collaborated on a book about the Internet's role in shaping society called "The New Digital Age" that comes out in April.

Using science and technology to build North Korea's beleaguered economy was the highlight of a New Year's Day speech by leader Kim Jong Un.

New red banners promoting slogans drawn from Kim's speech line Pyongyang's snowy streets, and North Koreans are still cramming to study the lengthy speech. It was the first time in 19 years for North Koreans to hear their leader give a New Year's Day speech. During the rule of late leader Kim Jong Il, state policy was distributed through North Korea's three main newspapers.

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Holmes Played Childish Games After Aurora Carnage

As police confronted the movie theater carnage and a massive booby trap left behind by accused Aurora gunman James Holmes, the suspect loopily played with hand puppets, tried to stick a metal staple in an electrical socket and clamly flipped a styrofoam cup, according to court testimony today.

Holmes, 25, displayed the bizarre behavior once he was in custody and taken to Aurora police headquarters after the shooting that left 12 people dead and dozens injured, the lead investigator in the case testified today.

While being cross examined by Colorado public defender Daniel King, Police Detective Craig Appel was asked about the observations of two Aurora officers assigned to watch over Holmes in an interrogation room.

Appel said that to preserve possible gunshot residue, police had placed paper bags over Holmes' hands. One officer, King said, noted in a report that Holmes began moving his hands "in a talking puppet motion."

Click here for full coverage of the Aurora movie theater shooting.

King asked if Appel was also aware that the officer "observed Holmes take a staple out of the table and tried to stick it in an electrical socket?" Appel confirmed Holmes' actions.

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The officers also noted that they watched as Holmes began playing with an empty styrofoam cup, trying to "flip it" on the table.

While Holmes was carrying out his childish antics, police were puzzling over a complex booby trap Holmes had left behind in his apartment, according to testimony.

A gasoline-soaked carpet, loud music and a remote control car were part of Holmes' plan to trick someone into triggering a blast that would destroy his apartment and lure police to the explosion while he shot up a movie theater in Aurora, Colo., according to court testimony.

FBI agent Garrett Gumbinner told the court that he interviewed Holmes on July 20, hours after he killed 12 and wounded 58 during the midnight showing of "The Dark Knight Rises."

"He said he rigged the apartment to explode to get law enforcement to send resources to his apartment instead of the theater," Gumbinner said.

His plan failed to prompt someone into triggering the bombs.

Gumbinner said Holmes had created two traps that would have set off the blast.

The apartment was rigged with a tripwire at the front door connected to a mixture of chemicals that would create heat, sparks and flame. Holmes had soaked the carpet with a gasoline mixture that was designed to be ignited by the tripwire, Gumbinner said.

"It would have caused fire and sparks," the agent said, and "would have made the entire apartment explode or catch fire."

Holmes had set his computer to play 25 minutes of silence followed by loud music that he hoped would cause a disturbance loud enough that someone would call police, who would then respond and set off the explosion by entering the apartment.

Gumbinner said Holmes also told him he rigged a fuse between three glass jars that would explode. He filled the jars with a deadly homemade chemical mixture that would burn so hot it could not be extinguished with water.

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