Iraq

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Iraqi security forces stand at the site of a bombing, that also upturned a fruit stand, in Karbala, 50 miles south of Baghdad, Iraq, Thursday, Jan. 20, 2011. A pair of bombs blasted through security checkpoints ringing the Iraqi holy city of Karbala Thursday and killed scores, most of whom were Shi'ite pilgrims headed to observe yearly religious rituals. (AP Photo/Ahmed al-Husseini)

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The body of a man killed in a bombing is loaded on the back of a truck in Karbala, 50 miles south of Baghdad, Iraq, Thursday, Jan. 20, 2011. A pair of bombs blasted through security checkpoints ringing the Iraqi holy city of Karbala Thursday and killed scores of people, many of whom were Shi'ite pilgrims headed to observe yearly religious rituals. (AP Photo/Ahmed al-Husseini)

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Men grieve after a bombing in Karbala, 50 miles south of Baghdad, Iraq, Thursday, Jan. 20, 2011. A pair of bombs blasted through security checkpoints ringing the Iraqi holy city of Karbala Thursday and killed scores, most of whom were Shi'ite pilgrims headed to observe yearly religious rituals. (AP Photo/Ahmed al-Husseini)

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Injured Iraqis receive treatment at a hospital in Tikrit, Iraq, after a suicide bomb attack that left more than 50 dead in this image taken from TV Tuesday, Jan. 18. 2011. (AP Photo/Salah Al-Din via APTN)

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An Iraqi policeman holds a document showing portraits of escaped detainees at a checkpoint in Basra, Iraq's second-largest city, 340 miles southeast of Baghdad, Iraq, Friday, Jan. 14, 2011. A dozen terror suspects disguised in police uniforms broke out of an Iraqi jail Friday, prompting a manhunt across the nation's south for what officials called a dangerous group of top-ranking insurgents linked to al Qaeda.(AP Photo/ Nabil al-Jurani)

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Vice President Joseph R. Biden Jr. (left) meets with Iraqi President Jalal Talabani in Baghdad on Thursday, Jan. 13, 2011. Mr. Biden arrived in Iraq earlier in the day for talks with the new government's leaders about the future of American troops in the country as they prepare to leave at year's end. (AP Photo/Maya Alleruzzo)

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Anti-American cleric Muqtada al-Sadr (center) is surrounded by bodyguards in the Shiite city of Najaf, Iraq, on Thursday. Hundreds of raucous supporters celebrated the return of the firebrand Iraqi cleric Thursday after his emergence from four years of exile in Iran, drawing a plea from him to show more discipline and restraint. (Associated Press)

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Anti-American cleric Muqtada al-Sadr, center, is surrounded by supporters in the Shi'ite city of Najaf, 100 miles south of Baghdad, Iraq, Wednesday, Jan. 5, 2011. Mr. al-Sadr, who led several Shi'ite uprisings against American forces in Iraq before going into exile in neighboring Iran almost four years ago, returned to Iraq Wednesday. (AP Photo/Alaa al-Marjani)

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Anti-U.S. Shi'ite cleric Muqtada al-Sadr delivers a Friday sermon in a mosque in Kufa, Iraq, on Sept. 22, 2006. Iraqi officials said Wednesday Jan. 5, 2011, Mr. al-Sadr returned to Iraq after a nearly 3-year absence.(AP Photo/Alaa Al-Marjani, File)

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Members of 1st Brigade, 3rd Infantry Division, based at Fort Stewart, Ga., sit in the belly of a C-17 aircraft at Sather Air Base in Baghdad as they begin their journey home after a year in Iraq on Nov. 30, 2010. (AP Photo/Maya Alleruzzo, File)

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A family walks past raw sewage in Basra, Iraq, earlier this month. Basra is strategically crucial for Iraq. With a population of about 3 million people, Basra is Iraq's second-largest province and home to about 70 percent of the country's proven oil reserves of 143.1 billion barrels. (Associated Press)

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Iraqi security forces inspect the scene of two suicide bombings in Ramadi, Iraq, 70 miles west of Baghdad, on Monday, Dec. 27, 2010. (AP Photo)

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People walk past a street vendor selling Christmas decorations in downtown Baghdad, Iraq, on Wednesday, Dec. 22, 2010. Church officials in Iraq say they have canceled some Christmas festivities in two northern cities over fears of insurgent attacks. (AP Photo/Hadi Mizban)

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Iraqi Prime Minister Nouri al-Maliki waits to submit his new government for approval to the Iraqi parliament in Baghdad on Tuesday. Iraqi lawmakers unanimously approved the new government. (Associated Press)

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Vice President Joseph R. Biden Jr. (right) greets Iraqi Foreign Minister Hoshyar Zebari (center) before a meeting of the U.N. Security Council at the world body's headquarters in New York on Wednesday, Dec. 15, 2010. At left is Hamid al-Bayati, Iraq's U.N. ambassador. (AP Photo)

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In this photo released by the Iraqi government, Iraqi President Jalal Talabani (second from right) on Thursday formally asks Iraqi Prime Minister Nouri al-Maliki (second from left) to form the next government in Baghdad. Mr. al-Maliki agreed. (Associated Press)

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Founder of the WikiLeaks website, Julian Assange, poses prior to a press conference in London, Saturday, Oct. 23, 2010, when WikiLeaks revealed previously secret files on the Iraq war -- the biggest leak of secret information in U.S. history. (AP Photo/Lennart Preiss)

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Iraqi Sunni Muslims pray over the grave of a relative at a cemetery on the first day of Eid al-Adha in Baghdad, Iraq, Tuesday, Nov. 16, 2010. Muslims around the world gathered on Tuesday to celebrate Eid al-Adha, or the Feast of Sacrifice.(AP Photo/Karim Kadim)

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Iraqis enjoy a ride at Amusement City in Baghdad, Iraq, Tuesday, Nov. 16, 2010 at the start of the Islamic festival Eid al-Adha, or Feast of Sacrifice. (AP Photo/Karim Kadim)