An Iraqi shop owner sells groceries in Baghdad. World Bank President Robert Zoellick says the high cost of food is an "aggravating factor" behind the unrest in the Middle East. Ali al-Saadi/AFP/Getty Images hide caption

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The Impact Of Rising Food Prices On Arab Unrest

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Farache Abaji
Turkish Gypsy Abaji
The Mighty Mouse Tommy Emmanuel
Locomotivation Tommy Emmanuel

An American black bear from the Kenai Peninsula in Alaska. A new study found that a bear's metabolism in hibernation drops by nearly 75 percent while its body temperature falls just slightly. Oivind Toien/Institute of Arctic Biology, University of Alaska, Fairbanks hide caption

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Hibernating Bears 'A Metabolic Marvel'

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2001: A Space Odyssey City of Prague Philharmonic Orchestra & Nic Raine
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President Obama, shown answering questions during a news conference Tuesday, is expected to hit the billion-dollar mark in fundraising for his re-election bid. His Republican opponent may raise that much as well. Evan Vucci/AP hide caption

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2012: The Year Of The Billion-Dollar Campaigns?

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Lust [From Nosferatu] Alloy Orchestra
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Alloy Orchestra

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Yoshiwara [From Metropolis] Alloy Orchestra
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Sith Spacecraft (The Droid Battle) Bruno Bertone
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Too Damn Funky Tom Principato Band
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Neil Barofsky, special inspector general for the Troubled Asset Relief Program, testifies before Congress. He will step down from his position in March. Manuel Balce Ceneta/AP hide caption

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TARP Watchdog Says Foreclosure Plan Is Failing

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Jelly Jam The Ford Blues Band
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East West The Paul Butterfield Blues Band
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The rate of integration has slowed in recent decades, according to demographers. Here, white and black mothers chat as they enjoy the sun at the Alfred E. Smith housing development in New York, May 1956. Bob Wands/AP hide caption

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Segregation In America: 'Dragging On And On'

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At StoryCorps in Biloxi, Miss., Dee Dickson, 59, told the story of how she got her first job at the shipyards. StoryCorps hide caption

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Family Breadwinner Finds Her Place: With The Men

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11 Years Frederick & Fredrik
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Na Na Ni
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One Dime Blues Etta Baker
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Etta Baker

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Mexican police guard the U.S. vehicle that was attacked Tuesday by suspected drug traffickers in Santa Maria del Rio, Mexico. One U.S. Immigration and Customs Enforcement agent was killed and another was wounded. El Pulso/AFP/Getty Images hide caption

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For Immigration Agents, Slaying Highlights Perils

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Fade Calexico
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Hot Rail
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Calexico

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Fade Calexico
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Saudi students sit for their final high school exams at the end of the school year June 19 in the Red Sea port city of Jeddah. Amer Hilabi/AFP/Getty Images hide caption

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Rise Of Education Lifts Arab Youths' Expectations

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Desert Phase Kaya Project
23 Towers--Eat Static mix Kaya Project

Dale Earnhardt, in front of his No. 3 car, looks on during practice for the Ford City 500 in 1999. Earnhardt was killed in a crash in the last lap of the Daytona 500 on Feb. 18, 2001. Jamie Squire/Getty hide caption

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A Fellow Racer Recalls Dale Earnhardt's Deadly Crash

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Son Becomes a Father The Hellecasters
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Sleepwalk Dave Bennett