Getty Images/David Furst
U.S. "surge" troops from 1-30 Infantry Battalion set fire to an Iraqi field after finding an illegal weapons cache during a patrol along the Tigris river, south of Baghdad, Sept. 2, 2007.
Getty Images/David Furst
Iraqi women pass by U.S. "surge" troops from 1-30 Infantry Battalion during a search for illegal weapons along the Tigris river, south of Baghdad, Sept. 2, 2007.
AP Photo
Iraqi men look on as Iraqi and U.S. soldiers search their house in the city of Baqouba, some 35 miles northeast of Baghdad, Iraq, Saturday, Sept. 1, 2007. Iraqi and U.S. soldiers arrested two men from the "wanted list" during their joint search operation on Saturday.
AP Photo/Karim Kadim
A young Iraqi girl looks out a damaged window in the Shiite enclave of Sadr City, Baghdad, Iraq, Saturday, Sept. 1, 2007.
AP Photo/Karel Prinsloo
Iraqi children look on as a U.S. soldier from Bravo 112 Cav Battalion looks through his gun scope during a foot patrol in the city of Baqouba, 35 miles northeast of Baghdad on Sunday, Sept. 2, 2007.
AP Photo
An injured Iraqi man lies in a hospital in the city of Baqouba, some 35 miles northeast of Baghdad, Iraq, Sunday, Sept. 2, 2007.
AP Photo
Iraqi men walk past cars that were demolished after a parked car exploded near the Kazimiyah neighborhood in northern Baghdad, Iraq on Sunday, Sept. 2, 2007. At least 5 people were killed and 12 were injured in the attack.
AP Photo/Karel Prinsloo
First Sgt. Ronald Cruz from the Delta 112 Cav Battalion reacts as a soldier throws water on him to cool him down during a house-to-house search near the city of Baqouba, 35 miles northeast of Baghdad on Friday, Aug. 31, 2007.
AP Photo/Karel Prinsloo
A U.S. soldier from the Delta 112 Cav Battalion gives an Iraqi woman $10 to compensate for a lock they had to break to gain entry to a room as they performed a house-to-house search near the city of Baqouba, 35 miles northeast of Baghdad on Friday, Aug. 31, 2007.
AP Photo/Alaa al-Marjani
Shiite men attend Friday prayers at the al Kufa mosque in the city of Kufa 100 miles south of Baghdad, Iraq, Friday, Aug. 31, 2007. Sheik Salah al Obaidi, Imam of al Kufa mosque, called thousands of al Sadr trend Shiite worshippers for a peaceful demonstration, following the prayers, denouncing what happened in Karbala recently.
AP Photo/Karel Prinsloo
A U.S. soldier from the 5th Squadron, 73rd Cavalry regiment, 3rd Brigade combat team of 82nd Airborne Division stands next to two Iraqi women, and a bed covered in a mosquito net, as they search their compound near the city of Baqouba, 35 miles northeast of Baghdad on Thursday, Aug. 30, 2007 during an intelligence gathering mission.
AP Photo/Khalid Mohammed
Iraqi kids look at what remained from a car that was used in a attack in neighborhood of Mansour in western Baghdad, Iraq on Wednesday, Aug. 29, 2007. The car bomb that exploded on Wednesday killed one civilian and injured 4 others.
AP Photo
Pilgrims celebrate outside the sanctuary of the 12th and last Shiite Imam al-Mahdi in the Shiite holy city of Karbala 50 miles south of Baghdad, Iraq, Tuesday, Aug. 28, 2007. Police ordered a curfew Tuesday in Karbala and told more than one million pilgrims to leave after two days of violence claimed at least 51 lives during a Shiite religious festival.
AP
Smoke from burning cars rise after clashes broke out in the streets of Shiite holy city of Karbala 50 miles south of Baghdad, Iraq, Tuesday, Aug. 28, 2007.
AP Photo/Bilal Fawzi
A general view of the suicide bombing site in the city of Fallujah, 40 miles west of Baghdad, Iraq on Tuesday, Aug. 28, 2007. Eleven people including Sheik Abdul Sattar al-Jumaili, the Immam of Al-Raqeeb mosque, died when a suicide bomber attacked the mosque during evening prayers on Monday.
AP Photo/Karel Prinsloo
U.S. soldiers from the 5th Squadron, 73rd Cavalry regiment, 3d Brigade combat team of 82nd Airborne Division look at the body of an Iraqi soldier near the city of Baqouba, 35 miles northeast of Baghdad on Tuesday, Aug. 28, 2007.
AP Photo/Hadi Mizban
A pilgrim using a converted wheelchair, who rode on it from the southern Iraqi city of Basra, is checked by Iraqi soldiers at the security checkpoint as he enters the holy city of Karbala, 50 miles south of Baghdad, Iraq, Monday, Aug. 27, 2007.
Getty Images/Spencer Platt
Sgt. Tad Myers of Jersey Shore, Pa., of the U.S.Army Alpha Company 82nd Airborne participates in a dawn patrol in the Hurriya neighborhood Monday, Aug. 27, 2007 in Baghdad, Iraq.
Getty Images/Ali Yussef
An Iraqi special forces soldier mans a checkpoint in Baghdad's Palestine area, Monday, Aug. 27, 2007. Insurgents killed four more American troops north and west of Baghdad, the military said Monday.
Getty Images/Spencer Platt
A boy sells gasoline to morning customers on a street corner Monday, Aug. 27, 2007, in the Hurriya neighborhood in Baghdad, Iraq.