AP Photo/Alaa al-Marjani
People stand by a car bomb wreck in the city of Hillah, Iraq, about 60 miles south of Baghdad, Saturday, March 31, 2007. Car bomb struck a gas station about in the Shiite city of Hillah killing at least two people and wounding 22, provincial police said.
AP Photo/Asaad Mouhsin
An Iraqi girl cries during a protest in the Ghazaliyah neighborhood in Baghdad, Iraq, Thursday, March 29, 2007. Some 200 people demanded the release of 60 of their relatives held by U.S. forces two days ago.
AP Photo/Adil al-Khazali
Iraqi children look at the hole made by a mortar round on a school roof in eastern part of Baghdad, Iraq, Thursday, March 29, 2007. There were no students injured in the attack.
AP Photo/Adil al-Khazali
People stand by pools of blood at the Shalal market in the predominantly Shiite Shaab neighborhood, north of Baghdad, Iraq, Friday, March 30, 2007. Two suicide attackers wearing explosives vests blew themselves up in the market Thursday evening killing at least 82 and wounding 102.
AP Photo/Marko Drobnjakovic
A U.S. army soldier from B Company, 1st Battalion, 23rd Infantry Regiment takes cover behind a dike as he gets ready to search an open field in west Baghdad's Ghazaliyah neighborhood, Iraq, Thursday, March 29, 2007.
Getty Images/Ali Yussef
An Iraqi policeman runs for cover as an alleged sniper opened fire at people in central Baghdad, March 28, 2007. A brief exchange of fire took place between Iraqi security forces and the sniper as panic took over civilians who rushed to find a shelter in the nearby buildings.
Getty Images/Ali Yussef
An Iraqi police commando secures the site where a car bomb exploded at Baghdad's al-Bayaa neighborhood, 28 March 28, 2007.
Getty Images/Ali Yussef
An Iraqi woman walks past the wreckage of a car at the site where a car bomb exploded at Baghdad's al-Bayaa neighborhood, March 28, 2007. Two people were killed and 10 others were wounded in the blast.
Getty Images/David Furst
Iraqi soldiers assist a man dig his brother's corpse out of a sewer drain and place it into a body bag in the predominantly Sunni al-Dora neighborhood of southern Baghdad, March 27, 2007. Gun and mortar attacks killed at least 19 Iraqis today, including women and children, as insurgent attacks homed in on the war-torn capital, security officials said.
AP Photo
Men stand around a car bomb wreck in Ramadi, Iraq, 70 miles west of Baghdad. Tuesday, March 27, 2007. At least 10 people died and 25 were wounded when a suicide car bomber exploded his payload Tuesday in a busy market near a bus station outside Ramadi, police said.
Getty Images/Patrick Baz
A U.S. Army helicopter drops flares as it flies over Baghdad March 27, 2007. A double car bomb killed 30 people and wounded another 50 today in a Shiite area in Iraq's northern town of Tal Afar, medical sources said.
AP Photo/Samir Mizban
A merchant demonstrates a table lighter featuring the image of executed Iraqi dictator Saddam Hussein in Baghdad, Iraq, Tuesday, March 27, 2007.
AP Photo/Asaad Mouhsin
A truck carrying supplies for the U.S. military burns on the expressway in western Baghdad, Iraq, Tuesday, March 27, 2007. A group of unknown gunmen attacked the truck and set it on fire, according to Iraqi police.
Getty Images/Ahmad Al-Rubaye
U.S. soldiers and Iraqi security forces secure the site of a suicide car bomb attack at Baghdad's al-Rusafi square, March 26, 2007. Two people where killed and five others were wounded in the blast.
AP Photo/Hadi Mizban
An Iraqi policeman stands at the site of a car bombing in front of a monument to Marouf al-Risafi, an Iraqi poet, in central Baghdad, Iraq, Monday, March 26, 2007. Two people were killed and four were wounded in the bombing.
AP
A U.S. Army soldier from B Company, 1st Battalion, 23rd Infantry Regiment takes cover behind a dike as he gets ready to search an open field in west Baghdad's Ghazaliyah neighborhood, Iraq, Thursday, March 29, 2007.
AP
A U.S. soldier guards an arrested man after a gunfight in central Baqouba, 35 miles northeast of Baghdad, Iraq, Thursday, March 29, 2007. Seven gunmen were killed and 14 were arrested in the firefight.
AP
Iraqi Special Operations Forces members demonstrate their skills during their graduation ceremony Thursday, March 29, 2007, in Baghdad, Iraq. Iraqi Prime Minster Nouri al-Maliki and the top U.S. commander in Iraq Gen. David H. Petraeus attended the ceremony.
GETTY
A U.S. Army soldier from B Company, 1st Battalion, 23rd Infantry Regiment raises his weapon above his head as he goes through thick grass during the search of an open field in west Baghdad's Ghazaliyah neighborhood, Thursday, March 29, 2007, in Iraq.
GETTY
A man shouts during a protest of refugees from the town Tal Afar in the northwest of Iraq, in Najaf, Thursday, March 29, 2007. Refugees protested recent sectarian violence in Tal Afar, a day after Shiite militants and police went on a shooting rampage against Sunnis in the city, killing as many as 70 men execution-style.