Residents are seen on the street from a military post at a building in Ramadi, 70 miles west of Baghdad, Iraq, Sunday, April 22, 2007.
Ali Jassim mourns as he takes part in the funeral procession for his brother Isam, in Shiite holy city of Najaf, 100 miles south of Baghdad, Iraq, Sunday, April 22, 2007. Isam Jassim, 13, was killed by unknown gunmen in the Shiite Muslim city of Kufa.
Soldiers from Alpha Troop, 3rd Squadron, 1st Cavalry Regiment, 3d Infantry Division prepare to enter a warehouse as they search for clues about a roadside bomb attack in the village of Al Majahreen, 25 miles east of Baghdad, Iraq, Sunday, April 22, 2007.
Residents are seen on the street through bulletproof glass at a military post on a building in Ramadi, 70 miles west of Baghdad, Iraq, Sunday, April 22, 2007.
Iraqi troops secure the area around a mosque in Baghdad, Iraq, Friday, April 20, 2007.
Iraqi troops secure the area around a mosque in Baghdad, Iraq, Friday, April 20, 2007. Clashes erupted between gunmen and U.S. and Iraqi forces around a Shiite mosque in western Baghdad just before Friday prayers, witnesses and local media said.
A mother carries the body of her son Montathar Qassim, age 6, victim of a bombing the previous day in Baghdad, for the funeral in Najaf, Iraq, Thursday, April 19, 2007.
Iraqi and U.S. troops secure the scene following an explosion in central Baghdad, Iraq, Thursday, April 19, 2007. A suicide car bomb exploded in a mostly Shiite district, killing at least 11 people and wounding 28, police said.
A resident holds a burnt copy of Quran found at the scene of a car bomb attack the previous day at the Sadriyah market in Baghdad, Iraq, Thursday, April 19, 2007.
A girl carries a baby past the scene of a car bomb attack the previous day that killed at least 127 people and injured 148 at the Sadriyah market in Baghdad, Iraq, Thursday, April 19, 2007.
A woman reacts as residents gather at the scene of a car bomb attack the previous day at the Sadriyah market in Baghdad, Iraq, Thursday, April 19, 2007.
Fire fighters extinguish fire after a suicide car bomber crashed into an Iraqi police checkpoint killing 33 and injuring 75 at an entrance to Sadr City, the capital's biggest Shiite Muslim neighborhood, in Baghdad, Iraq, Wednesday, April 18, 2007.
Residents run away from the scene following an explosion in Sadr City district of Baghdad, Iraq, Wednesday, April 18, 2007. A suicide car bomber crashed into an Iraqi checkpoint at an entrance to Sadr City, killing at least 30 and wounding 45 in the capital's largest Shiite Muslim area, police said.
Residents and police gather at the scene following an explosion in Sadr City district of Baghdad, Iraq, Wednesday, April 18, 2007.
Chaplain Steven Thompson from Jacksonville, Fla., with the 125th Fighter Wing, says goodbye to a student at a primary school in Zatiya, 25 miles east of Baghdad, Iraq, Wednesday April 18, 2007.
A U.S. military vehicle burns near Samarra, 60 miles north of Baghdad, Iraq, Wednesday, April 18, 2007. A roadside bomb went off next to an American military convoy, damaging one Humvee, local police said. Eyewitnesses reported casualties among U.S. troops.
An Iraqi girl walks past the scene of an explosion in Baghdad, Iraq, Wednesday, April 18, 2007. A parked car exploded near a private hospital in the central neighborhood of Karradah, killing 11 people and wounding 13, police said.
Residents gather at the scene of an explosion in Baghdad, Iraq, Wednesday, April 18, 2007.
An Iraqi man and a boy walk through the rubble of one of the offices of the Iraqi Islamic party in Ghazaliyah in west Baghdad, Iraq, Wednesday, April 18, 2007. Masked gunmen planted bombs inside the two offices of the Iraqi Islamic party and blew them up, a source in the information office of the party said.
An Iraqi woman and her children watch soldiers from Charlie Troop, 3rd Squadron, 1st Cavalry Regiment walk through their house during a visit to their village 25 miles east of Baghdad, Iraq, Tuesday April 17, 2007.