Earth may be crashing through dark matter walls



































Earth is constantly crashing through huge walls of dark matter, and we already have the tools to detect them. That's the conclusion of physicists who say the universe may be filled with a patchwork quilt of force fields created shortly after the big bang.












Observations of how mass clumps in space suggest that about 86 per cent of all matter is invisible dark matter, which interacts with ordinary matter mainly through gravity. The most popular theory is that dark matter is made of weakly interacting massive particles.











WIMPs should also interact with ordinary matter via the weak nuclear force, and their presence should have slight but measurable effects. However, years of searches for WIMPs have been coming up empty.













"So far nothing is found, and I feel like it's time to broaden the scope of our search," says Maxim Pospelov of the University of Victoria in Canada. "What we propose is to look for some other signatures."











Bubbly cosmos













Pospelov and colleagues have been examining a theory that at least some of the universe's dark matter is tied up in structures called domain walls, akin to the boundaries between tightly packed bubbles. The idea is that the hot early universe was full of an exotic force field that varied randomly. As the universe expanded and cooled, the field froze, leaving a patchwork of domains, each with its own distinct value for the field.












Having different fields sit next to each other requires energy to be stored within the domain walls. Mass and energy are interchangeable, so on a large scale a network of domain walls can look like concentrations of mass – that is, like dark matter, says Pospelov.












If the grid of domain walls is packed tightly enough – say, if the width of the domains is several hundred times the distance between Earth and the sun – Earth should pass through a domain wall once every few years. "As a human, you wouldn't feel a thing," says Pospelov. "You will go through the wall without noticing." But magnetometers – devices that, as the name suggests, measure magnetic fields – could detect the walls, say Pospelov and colleagues in a new study. Although the field inside a domain would not affect a magnetometer, the device would sense the change when Earth passes through a domain wall.












Dark matter walls have not been detected yet because anyone using a single magnetometer would find the readings swamped by noise, Pospelov says. "You'd never be able to say if it's because the Earth went through a bizarre magnetic field or if a grad student dropped their iPhone or something," he says.











Network needed













Finding the walls will require a network of at least five detectors spread around the world, Pospelov suggests. Colleagues in Poland and California have already built one magnetometer each and have shown that they are sensitive enough for the scheme to work.












Domain walls wouldn't account for all the dark matter in the universe, but they could explain why finding particles of the stuff has been such a challenge, says Pospelov.












If domain walls are found, the news might come as a relief to physicists still waiting for WIMPs to show up. Earlier this month, for instance, a team working with a detector in Russia that has been running for more than 24 years announced that they have yet to see any sign of these dark matter candidates.












Douglas Finkbeiner of the Harvard-Smithsonian Center for Astrophysics, who was not involved in Pospelov's study, isn't yet convinced that dark matter walls exist. But he is glad that physicists are keeping an open mind about alternatives to WIMPs.












"We've looked for WIMP dark matter in so many ways," he says. "At some point you have to ask, are we totally on the wrong track?"












Journal reference: Physical Review Letters, DOI: 10.1103/PhysRevLett.110.021803


















































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WP will strengthen the voice of the opposition: Lee Li Lian






SINGAPORE: Workers' Party (WP) candidate for the Punggol East by-election, Lee Li Lian said having another WP member in Parliament will strengthen the voice of the opposition.

It means more airtime for the opposition to ask more questions on behalf of Singaporeans and this, she said will definitely make a difference.

Ms Lee refuted talk that having the WP members in Parliament did not make a difference, saying they have done an excellent job.

She was speaking to reporters after a morning walkabout at Rivervale Plaza.

- CNA/ck



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Historic D.C., hidden in plain sight














Locals reveal the D.C. you don't know


Locals reveal the D.C. you don't know


Locals reveal the D.C. you don't know


Locals reveal the D.C. you don't know


Locals reveal the D.C. you don't know


Locals reveal the D.C. you don't know


Locals reveal the D.C. you don't know








STORY HIGHLIGHTS


  • Washington, D.C. holds a lot of nearly hidden history

  • A tennis court occupies the site of the execution of Lincoln assassination conspirators

  • A present-day parking garage once hosted a historic Beatles show




Washington (CNN) -- Ordinarily, I'm not a fan of vandalism.


But years ago I spotted some graffiti in Washington that struck a chord. Someone had spray painted the symbol for anarchy -- a circled "A" -- on a Chinatown grocery store.


And I wondered: Did they know?


Did they know that that building, a century earlier, had been Mary Surratt's boarding house? Did they know that conspirators had gathered there to plot the kidnapping and assassination of an American president? Did they know that the site had played a role in the biggest act of anarchy in this country's history?


Was the graffiti just accidentally appropriate? Or could punks with paint be profound?


I don't know the answer, of course. But I know that this city is teeming with people who, like me, relish its hidden history.


Washington is a town of majestic monuments and memorials. And those are worth visiting. But if you limit your sightseeing to the obvious -- if you ignore the obscure -- you'll miss the good stuff.


That is what I had in mind when I asked historians and history buffs to show me places -- off the beaten path -- that have stirred their love of history and this great town.


WASHINGTON COLISEUM: "I Saw Them Standing There"


Four boys, in dire need of haircuts, come to town, looking to conquer it.


The British tried it once before, in 1814. Burned the city. It left a bad taste in everyone's mouth.


But this time, they try soft diplomacy. A little twist and shout. A little ditty about wanting to hold your hand.


And it works.


Improbable as it sounds, it happened in a barrel-shaped architectural ruin just north of the Capitol on 3rd Street NE.


Shortly after 8:30 p.m. on Feb. 11, 1964 -- two days after appearing on "The Ed Sullivan Show" -- the Beatles took the stage in Washington Coliseum. It was the Beatles' very first stage concert in the United States.


Critics later say the concert is as singular moment in rock history -- a moment when the early Beatles seemed even more joyous than their shrieking teen-age fans.


Richard Layman, who fought to preserve the Coliseum, cherishes this place for many reasons. Built in 1940 and 1941, the building served as an ice rink, sports arena, worship hall, trash transfer station and parking garage. Nation of Islam leaders Malcolm X and Elijah Muhammed spoke here. It hosted numerous professional sports teams, and was home to the Ice Capades.


For Beatle devotees, this is a shrine.


They still have ticket stubs, and remember whether they paid $2, $3 or $4. They gush about how Paul smiled at them.


An age of innocence? Not exactly. The Russians threatened us from outer space. The pains of segregation and integration were rocking the country. And, just three months earlier, an assassin felled the leader of the free world.


But for about 35 minutes on a cold February night in 1964, four boys from Liverpool entered a converted ice rink and warmed a generation's heart.


COURTROOM DRAMA: Last act of the Civil War


The man, a tavern owner, took the witness stand.


"I was acquainted with John Wilkes Booth," he said. "Booth came into my restaurant [adjoining Ford's Theater] on the evening of the 14th of April."


Booth "walked up to the bar, and called for some whiskey, which I gave him; he called for some water, which I also gave him; he placed the money on the counter and went out. I saw him go out of the bar alone, as near as I can judge, from eight to ten minutes before I heard the cry that the President was assassinated."


Peter Taltavul spoke those words, in this room, just one month after Lincoln died.


By then, authorities had already tracked down Booth, cornered him, and killed him. And they had rounded up eight people who they believe had assisted him.


They convened a military commission to conduct the trial in the third floor of what was then a federal penitentiary. The co-conspirators, they reasoned, were not "civilians," but were "enemy belligerents." The nation was seeking justice and vengeance, and it would come swiftly.


On July 6, 1865 -- less than three months after the assassination -- the commission found all eight conspirators guilty. It sentenced four to hang, and four to prison terms. The condemned were hanged the next day.


A year later, the Supreme Court would rule that a defendant could not be tried by military commission when civilian courts were functioning. But it was too late.


The penitentiary is now closed and largely demolished. The land is part of Fort McNair at the southernmost point of Washington.


Visitors -- mostly lawyers and Civil War buffs -- are frequently overwhelmed when they enter the room, said Susan Lemke, a special collections librarian who has accumulated artifacts related to the trial. "There's no substitution for actually witnessing or being in the middle of a historic site like that," she said.


THE GALLOWS: Where generals "serve," conspirators hanged


Michael Kauffman is struck by the incongruity of it all.


On the edge of a Fort McNair tennis court, where generals now casually toss their gym bags, Abraham Lincoln's death was avenged.


Here in this spot, near the penitentiary room where the sentences were handed down, on a miserably hot day in July 1865, Union Army Capt. Christian Rath raised his hands and clapped three times. On the third clap, soldiers knocked supports out from under a gallows, and four prisoners fell. Their bodies jerked violently at the ends of their ropes. The prisoner in the dress appeared to die instantly. But one of her three accused accomplices writhed for five minutes before surrendering his ghost.


"I am one of those people who think that if you really want to understand history, you have to go to where it happened," says Kauffman, an expert on the Lincoln assassination.


So Kauffman leads me to this empty tennis court. It is drizzly and cold, and there is little here to evince the images and emotions of that hot July day. The penitentiary's tall wall has been demolished, and a building prominent in photos of the hanging has been altered almost beyond recognition.


Almost.


Kauffman shows me the place where the wall met the building. And in my mind's eye, the gallows fall into place.


"There's this strange sort of excitement that you get when you've read about something, and you visualize it, and you think you know all about it. And then all of a sudden you go there and it's right in front of you. It surrounds you. And it's always somehow different from what you had imagined," Kauffman said.


Different, to be sure. But more real than ever.


CHADWICKS: Where the U.S. was shaken, and stirred


It is known as "The Big Dump."


On June 16, 1985, CIA officer Aldrich Ames walked into Chadwicks, a Georgetown pub, with two shopping bags full of classified information and, over lunch, gave them to a Soviet diplomat.


"In those bags was every piece of paper he could get his hands on that revealed almost all of our operations in the Soviet Union," said Peter Earnest, a former CIA official who is now executive director of the International Spy Museum in D.C.


Five to seven pounds of secrets.


The enormity of the breach became known only after the Soviet Union began rounding up some of the United States' most valuable assets in Russia. At least 10 were executed.


The CIA launched a hunt for a possible mole. It compiled a list of 190 CIA officers with access to relevant classified information, and culled it to 28. And in 1994 -- nine years after the Big Dump -- Ames and his wife were arrested.


Earnest says he doesn't "romanticize" the Chadwick's site, but says "the repercussions of what he did ripple through the government today -- the need to have more polygraphs, the concerns about our records ... the nature of the questions asked."


It's also a waypoint in the Spy Museum's bus tour, which notes the role that Ames' "high-maintenance" wife Rosario played in his betrayal of his country.


Tour guides note that after Ames was arrested, FBI agents who eavesdropped on their conversations made an astonishing comment: They were so disgusted with Rosario's constant badgering about money, her criticisms of Ames and her treatment of their son that although they could never forgive Ames for spying, they said, they would have understood if he had killed his wife.


ALEXANDRIA SLAVE PEN: From slave to freeman


"PRICE, BIRCH & CO," the sign read. "DEALERS IN SLAVES."


The sign is long gone, but the building, known as the "Alexandria Slave Pen," still stands in Alexandria, Virginia, just across the river from Washington.


"I often tell my students, 'You've gone into towns where you just see row after row of car dealerships. Duke Street was that -- but slave dealerships,'" says Chandra Manning, associate professor of history at Georgetown University.


In 1861, the slave trade was thriving when Virginia seceded from the union. But on May 24 of that year, the Union Army's First Michigan Infantry marched into town, and one of the first things it did was liberate the slaves.


Ironically, the slave pen became a refuge for runaway and freed slaves seeking the protection of the Union Army.


Today, 1315 Duke Street is home to the Alexandria branch of the National Urban League, a civil rights organization. A historical marker stands outside, and there's a small museum in the basement.


But Manning believes most passersby have no idea about the building's horrific past.


Most, but not all.


"If you're walking with me," Manning says, "you have no choice but to know what happened here."


THE FORGOTTEN CRASH: History lost and relived


On a fog-shrouded evening on the penultimate day of 1906, a dead-heading train roared down this stretch of tracks near Washington's Catholic University, coming upon a slower passenger train heading the same direction on the same track. There was no time to stop.


Railroad workers have an antiseptic -- but descriptive -- word for what happened next: Telescoping.


The massive steel engine of the speeding train plowed through the flimsy wooden passenger car of the slower train, killing and dismembering its occupants. It plowed through the next car as well, and the one after that. When the trains came to a stop, cinders and soot from the locomotive's fire box rained down on the splintered wooden planks, clothing, Christmas gifts and human remains. Fifty-three people died, and more than 70 were injured.


Today, the "Terra Cotta" crash is all but lost to history. Every day, thousands pass the site, where there isn't even a hint of the horror that happened.


But Richard Schaffer, a D.C. firefighter who spent 10 years researching the crash, says Terra Cotta nonetheless changed railroading. It hastened the conversion of passenger cars from wood to steel and led to improvements in railroad signaling. That happened, he says, because the crash happened on "the route to Congress."


There's a saying, sometimes attributed to Mark Twain: "History doesn't repeat itself, but it does rhyme."


History rhymed in June 2009 -- nearly 103 years later -- when a D.C. Metro subway train plowed into another subway train. The cars telescoped, killing nine and injuring dozens.


"The irony was it was practically the same location and practically all the same problems, human error, signaling problems, construction quality of the trains," Schaffer said.


Both wrecks deserve to be remembered.


"If you forget what's happened before you," Schaffer says, "you don't have a foundation to live upon."


CONGRESSIONAL CEMETERY: The last hurrah


Can there be any doubt what happens here when the sun goes down?


Can there be any doubt that, when the gates close and the last visitor leaves this historic burial ground, band leader John Philip Sousa reaches for his baton, Civil War photographer Mathew Brady tweaks his camera, and J. Edgar Hoover tries to keep the whole mess under control?


This is Congressional Cemetery, where Washington's political and social establishment rests in eternal peace. In the 1800s, its heyday, this was the site of grand funeral processions. Tens of thousands of Washingtonians would gather to watch soldiers carry fallen leaders down a slate path to graves or crypts.


"I'm sure there are quite a few secrets buried here," says Abby Johnson.


Abby and her husband Ronald, professors of literature and history respectively at Georgetown University, take me to the "Public Vault," a crypt the size of a one-car garage. Built in the 1830s, the vault was used to store the bodies of public officials until the ground thawed, or until they were moved to other locations.


You need a skeleton key, of course, to get inside.


Dolly Madison slept here. As did three presidents: William Henry Harrison (1841), John Quincy Adams (1848), and Zachary Taylor (1850). Harrison's three-month stay was three times longer than his presidential term. All the presidents' bodies have since been moved to their home states.


Today, Congressional Cemetery, which boasts of being "in the shadow" of the U.S. Capitol, is overshadowed by a more prominent cemetery -- Arlington. But the Johnsons are devoted to keeping Congressional's memory alive. At least as long as they are alive. And then maybe, just maybe, beyond.







Read More..

Failed assassination attempt in Bulgaria - caught on tape

January 19, 2013 12:29 PM

In a failed assassination attempt on the leader of Bulgaria's ethnic Turkish party, Ahmed Dogan, a man is seen jumping out of the audience and onto the stage where Dogan is speaking. He then points the gun at Dogan's head and the gun reportedly misfires. The attacker is then tackled and beaten by security guards.

Read More..

Algeria Hostage Crisis Over, One American Dead













After the Algerian military's final assault on terrorists holding hostages at a gas complex, the four-day hostage crisis is over, but apparently with additional loss of life among the foreign hostages.


One American, Fred Buttaccio of Texas, has been confirmed dead by the U.S. State Department. Two more U.S. hostages remain unaccounted for, with growing concern among U.S. officials that they did not survive.


But another American, Mark Cobb of Corpus Christi, Texas is now confirmed as safe. Sources close to his family say Cobb, who is a senior manager of the facility, is safe and reportedly sent a text message " I'm alive."










Inside Algerian Hostage Crisis, One American Dead Watch Video









American Hostages Escape From Algeria Terrorists Watch Video





In a statement, President Obama said, "Today, the thoughts and prayers of the American people are with the families of all those who were killed and injured in the terrorist attack in Algeria. The blame for this tragedy rests with the terrorists who carried it out, and the United States condemns their actions in the strongest possible terms. ... This attack is another reminder of the threat posed by al Qaeda and other violent extremist groups in North Africa."


According to Algerian state media, 32 militants are dead and a total of 23 hostages perished during the four-day siege of the In Amenas facility in the Sahara. The Algerian Interior Ministry also says 107 foreign nationals who worked at the facility for BP and other firms were rescued or escaped from the al Qaeda-linked terrorists who took over the BP joint venture facility on Wednesday.


The Japanese government says it fears "very grave" news, with multiple casualties among the 10 Japanese citizens working at the In Amenas gas plant.


Five British nationals and one U.K. resident are either deceased or unaccounted for in the country, according to British Foreign Minister William Hague. Hague also said that the Algerians have reported that they are still trying to clear boobytraps from the site.




Read More..

NASA planet-hunter is injured and resting



Lisa Grossman, physical sciences reporter

Kepler-deadwheel2.jpg


(Image: NASA/Kepler mission/Wendy Stenzel)


NASA's planet-hunting Kepler telescope has put its search for alien Earths on hold while it rests a stressed reaction wheel.


The injured wheel normally helps to control the telescope's orientation, keeping it pointed continuously at the same patch of sky. Kepler stares at the thousands of stars in its field of view to watch for the telltale blinks that occur when a planet crosses in front of its star. It has found nearly 3000 potential planets outside our solar system since its launch in 2009, transforming the field of exoplanet research and raising hopes of someday finding alien life.


When it launched, Kepler had four reaction wheels: three to control its motion along each axis, and one spare. But last July, one wheel stopped turning. If the spacecraft loses a second wheel, the mission is over.






So when another wheel started showing signs of elevated friction on 7 January, the team decided to play it safe. After rotating the spacecraft failed to fix the problem, NASA announced yesterday that they're placing Kepler in safe mode for 10 days to give the wheel a chance to recover.


The hope is that the lubricating oil that helps the wheel's ball bearings run smoothly around a track will redistribute itself during the rest period.


The telescope can't take any science data while in safe mode. But if the wheel recovers on its own, Kepler's extended mission will run until 2016, leaving it plenty of time to make up for the lost days.


"Kepler is a statistical mission," says Charlie Sobeck, Kepler's deputy project manager at NASA's Ames Research Centre in Mountain View, California. "In the long run, as long as we make the observations, it doesn't matter a lot when we make the observations."


Despite the high stakes, the team doesn't seem too worried.


"Each wheel has its own personality, and this particular wheel has been something of a free spirit," Sobeck says. "It's had elevated torques throughout the mission. This one is typical to what we've seen in the past, and if we had four good wheels we probably wouldn't have taken any action."


"I prefer to picture the spacecraft lounging at the shore of the cosmic ocean sipping a Mai Tai so that she'll be refreshed and rejuvenated for more discoveries," wrote Kepler co-investigator Natalie Batalha in an email.


The team will check up on the wheel on 27 January and return to doing science as soon as possible.


There are two exoplanet missions currently being considered for after Kepler is finished, says Doug Hudgins at NASA Headquarters in Washington, DC. One, TESS (Terrestrial Exoplanet Survey Satellite), would scan the entire sky for planets transiting the stars nearest to the sun. The other, FINESSE (Fast Infrared Exoplanet Spectroscopy Survey Explorer), would take spectra of planets as they passed in front of their stars as a way to probe their atmospheres.


The missions are being evaluated now, and NASA will probably select one this spring, Hudgins says. The winner will launch in 2017.


If Kepler goes down with its reaction wheel, that won't affect which mission wins, he adds. "That's a straight-up competition based on the merits of the two concept study reports."




Read More..

Fate of two Malaysians unknown in Algerian crisis






KUALA LUMPUR: The fate of two Malaysians believed to have been caught up in the ongoing hostage crisis at a gas complex in the Algerian desert remains unknown, the foreign ministry said Saturday.

It said that three other Malaysians who were working at the gas plant were safe. The embassy in Algeria "is still determining the fate" of the other two, the foreign ministry said in a statement.

Al-Qaeda-linked gunmen stormed the gas plant in eastern Algeria on Wednesday. They have demanded an end to the French intervention in neighboring Mali, according to Mauritania's ANI news agency.

The number of foreigners held at the plant is unclear.

The kidnappers have said they are still holding seven at the site deep in the Sahara desert near the border with Libya. An Algerian security official put their number at 10.

An Algerian security official said a dramatic military assault during the week to rescue those held had left dead 12 hostages and 18 kidnappers dead.

- AFP/ck



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'Well folks, I'm about to get shot'









By Brittany Brady, CNN


updated 7:41 PM EST, Fri January 18, 2013








Police say Eric Ramsey rammed a trooper's car and two other vehicles, and stole a sanitation truck.





STORY HIGHLIGHTS


  • "It's been real, bro, wish I could have hung with you once last time," Eric Ramsey allegedly writes

  • Ramsey led police on a chase after abducting and assaulting a university student, officials say

  • Suspect was shot dead




(CNN) -- A man suspected of abducting and sexually assaulting a Central Michigan University student posted a final goodbye a few hours later on his Facebook page shortly before an officer fatally shot him, authorities said Friday.


"Well folks, I'm about to get shot. Peace," was 30-year-old Eric Ramsey's last post to his Facebook wall around 3:15 a.m. Thursday, Isabella County Sheriff Leo Mioduszewski told CNN in a telephone interview.


Ramsey had abducted the student from CMU's campus about 2.5 hours northwest of Detroit on Wednesday evening, then drove her to a home where he bound and sexually assaulted her, the sheriff's department said in a news release.


After the attack, Ramsey put the woman back in the car, grabbed two cans of gasoline and began driving again, it said. When he told the woman he was going to kill her, she jumped from the car and ran to a nearby residence, where she knocked on the door and yelled for help, the release said.


A 14-year-old boy let her in and, after hearing her story, locked the woman, his younger sister and himself in the bathroom, Mioduszewski said.


As the woman was calling police, Ramsey poured gasoline on the house and set it afire before fleeing, the sheriff said.


Shortly thereafter, the children's father returned home and doused the fire, which caused no serious damage, Mioduszewski said.


Police soon caught up with Ramsey, who led them on a chase through two counties, during which he rammed a state police trooper's car, stole a sanitation truck and rammed two more vehicles, police said.


"It's been real, bro, wish I could have hung with you once last time. Love you, brother," Ramsey allegedly posted to a friend's Facebook page around 1 a.m. Thursday, as the chase was continuing.


A couple of hours later, after hitting a deputy's car head-on, Ramsey posted his final words, the sheriff said. Soon after, he was fatally shot by a deputy.


"We owe it to the public to find out what was the cause of this," Mioduszewski said Friday. Police are meeting with friends and family to determine what was going on in Ramsey's life, he said.









Read More..

At least one American dead in Algerian hostage crisis

Updated at 6:41 p.m. ET

An American in the Algerian hostage standoff in the Algerian desert has been killed, CBS News has learned.

Fredrick Buttaccio from Katy, Texas near Houston, was an employee of the oil company BP. It is unknown how he died, but U.S. government sources tell CBS News his body has been recovered and his family has been notified.

Meanwhile, a U.S. military plane has landed in Amenas, Algeria to pick up nine passengers - one American and eight foreign nationals - to be transported to Landstuhl, Germany, a military source told CBS News.

The flight, which contains an air medical evacuation team, was expected to have departed Algeria by Thursday afternoon.

It's not clear exactly how many total casualties have resulted from the fighting, but Algeria's state news agency reported that 12 foreign and Algerian workers had died since the start of the operation, citing an unidentified security source. That information could not be independently confirmed.

As CBS News correspondent Mark Phillips reported, the freed hostages told of how they fled in the confusion as the Algerian army attacked. Many were injured, some badly. One person said: "It happened so fast."

But it hasn't ended quickly, reported Phillips. The Algerians say they've freed nearly a hundred foreigners. And as they were being bused away, many thanked their rescuers. "They kept us all nice and safe and fought off the bad guys," said another person.

Also, more detail of the ordeal has emerged with the freed hostages. Some say they had explosives hung around their necks as they were placed in a convoy of vehicles by their captors. When the cars began to move, the Algerian Army units surrounding the site feared the captives were being taken out of the compound -- and opened fire.

The al Qaeda-linked Masked Battalio, led from afar by Moktar Belmoktar, may still be holding some of the roughly 30 foreigners still unaccounted for.

U.S. Secretary of State Hillary Clinton did not get into specifics on the crisis Friday afternoon, but described it as an "extremely difficult and dangerous situation" and called on the Algerian government to "preserve innocent life" in their efforts to fully resolve the crisis. Clinton spoke after the State Department said that Americans were still being held hostage.

The desert siege erupted Wednesday when the militants attempted to hijack two buses at the plant, were repulsed, and then seized the sprawling refinery, which is 800 miles south of Algiers. They had claimed the attack came in retaliation for France's recent military intervention against Islamist rebels in neighboring Mali, but security experts have said it must have taken weeks of planning to hit the remote site.

Since then, Algeria's government has kept a tight grip on information about the siege.

The militants had seized hundreds of workers from 10 nations at Algeria's remote Ain Amenas natural gas plant. The overwhelming majority were Algerian and were freed almost immediately.

Algerian forces retaliated Thursday by storming the plant in an attempted rescue operation that left leaders around the world expressing strong concerns about the hostages' safety.

Militants claimed 35 hostages died on Thursday when Algerian military helicopters opened fire as the Islamists transported the hostages around the gas plant. While Algerian officials acknowledged some hostage deaths, the number could not be independently confirmed.

On Friday, trapped in the main refinery area, the militants offered to trade two American hostages for two prominent terror figures jailed in the United States. Those the militants sought included Omar Abdel Rahman, the blind sheikh who was convicted of plotting to blow up New York City landmarks and considered the spiritual leader of the 1993 World Trade Center bombing, and Aafia Siddiqui, a Pakistani scientist convicted of shooting at two U.S. soldiers in Afghanistan.

But U.S. Defense Secretary Leon Panetta said there would be "no place to hide" for anyone who looks to attack the United States.

"Terrorists should be on notice that they will find no sanctuary, no refuge, not in Algeria, not in North Africa, not anywhere," Panetta said Friday.

Workers kidnapped by the militants came from around the world -- Americans, Britons, French, Norwegians, Romanians, Malaysians, Japanese, Algerians.


Amenas gas facility, algeria

A high-resolution satellite image of the Amenas gas facility taken on Dec 7, 2012.


/

GeoEye Satellite Image

World leaders have expressed strong concerns in the past few days about how Algeria was handing the situation and its apparent reluctance to communicate.

Terrorized hostages from Ireland and Norway trickled out of the plant. BP, which jointly operates the plant, said it had begun to evacuate employees from Algeria.

A U.S. military C-130 transport plane flew a number of people including former Ain Amenas hostages from the Algerian capital of Algiers to a U.S. facility in Europe, a U.S. official said. He declined to be specific about the destination, their nationalities or the extent of the wounds that he said some had.

A flood of foreign energy workers were being evacuated from the North African nation amid security concerns.

BP evacuated one U.S. citizen along with other foreign energy workers from Algeria to Mallorca and then London. The oil giant said three flights left Algeria on Thursday, carrying 11 BP employees and several hundred energy workers from other companies.

A fourth plane was taking more people out of the country on Friday, BP said.

Read More..

Armstrong Tearful Over Telling Kids Truth













Lance Armstrong, 41, began to cry today as he described finding out his son Luke, 13, was publicly defending him from accusations that he doped during his cycling career.


Armstrong said that he knew, at that moment, that he would have to publicly admit to taking performance-enhancing drugs and having oxygen-boosting blood transfusions when competing in the Tour de France. He made those admissions to Oprah Winfrey in a two-part interview airing Thursday and tonight.


"When this all really started, I saw my son defending me, and saying, 'That's not true. What you're saying about my dad? That's not true,'" Armstrong said, tearing up during the second installment of his interview tonight. "And it almost goes to this question of, 'Why now?'


"That's when I knew I had to talk," Armstrong said. "He never asked me. He never said, 'Dad, is this true?' He trusted me."


He told Winfrey that he sat down with his children over the holidays to come clean about his drug use.


"I said, 'Listen, there's been a lot of questions about your dad, about my career and whether I doped or did not dope,'" he said he told them. "'I always denied that. I've always been ruthless and defiant about that, which is why you defended me, which makes it even sicker' I said, 'I want you to know that it's true.'"


He added that his mother was "a wreck" over the scandal.


Armstrong said that the lowest point in his fall from grace and the top of the cycling world came when his cancer charity, Livestrong, asked him to consider stepping down.






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Lance Armstrong-Winfrey Interview: How Honest Was He? Watch Video









Lance Armstrong-Winfrey Interview: Doping Confession Watch Video







After the U.S. Anti-Doping Agency alleged in October that Armstrong doped throughout his reign as Tour de France champion, Armstrong said, his major sponsors -- including Nike, Anheuser Busch and Trek -- called one by one to end their endorsement contracts with him.


"Everybody out," he said. "Still not the most humbling moment."


Then came the call from Livestrong, the charity he founded at age 25 when he was diagnosed with testicular cancer.


"The story was getting out of control, which was my worst nightmare," he said. "I had this place in my mind that they would all leave. The one I didn't think would leave was the foundation.


"That was most humbling moment," he said.


Armstrong first stepped down as chairman of the board for the charity before being asked to end his association with the charity entirely. Livestrong is now run independently of Armstrong.


"I don't think it was 'We need you to step down,' but, 'We need you to consider stepping down for yourself,'" he said, recounting the call. "I had to think about that a lot. None of my kids, none of my friends have said, 'You're out,' and the foundation was like my sixth child. To make that decision, to step aside, that was big."


In Thursday's interview installment, the seven-time winner of the Tour de France admitted publicly for the first time that he doped throughout his career, confirming after months of angry denials the findings of the U.S. Anti-Doping Agency, which stripped him of his titles in October.


He told Winfrey that he was taking the opportunity to confess to everything he had done wrong, including for years angrily denying claims that he had doped.


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