An Iraqi family watch from their balcony as U.S. troops take a street near Martyrs' Square in Baghdad, Iraq Wednesday July 7, 2004. At least four people were killed and 20 others injured in running gun battles between U.S.-back Iraqi National Guards and masked insurgents. (AP Photo/David Guttenfelder)
U.S. soldiers arrest Iraqi men for questioning near Martyrs' Square in Baghdad, Iraq Wednesday July 7, 2004. At least four people were killed and 20 others injured in running gun battles between U.S.-backed Iraqi National Guards and masked insurgents. (AP Photo/David Guttenfelder)
U.S. soldiers take the street near Martyrs' Square in Baghdad, Iraq Wednesday July 7, 2004. At least four people were killed and 20 others injured in running gun battles between U.S.-backed Iraqi National Guards and masked insurgents. (AP Photo/David Guttenfelder)
Iraqi police work to successfully diffuse a car bomb that was discovered near the Al-Iman Mosque, a Shiite mosque in the Karada neighborhood of Baghdad, Iraq Wednesday, July 7, 2004.(AP Photo/Samir Mizban)
American soldiers run with protective gear while taking up positions near where Iraqi security forces and insurgents fought a pitched battle in central Baghdad, Iraq Wednesday, July 7, 2004.(AP Photo/Khalid Mohammed)
A wounded Iraqi National Guardsman is driven to a nearby hospital after he was seriously injured during a gunfight in central Baghdad July 7, 2004. Insurgents battled U.S. troops and Iraqi security forces in central Baghdad on Wednesday as the interim government announced a new security law giving itself wider powers to combat militants and stabilize the country. REUTERS/Zohra Bensemra
Two US soldiers take position during clashes between US and Iraqi forces against insurgents in central Baghdad. Mortars targeted the offices of Prime Minister Iyad Allawi, wounding five people, while two Iraqi national guards died and 21 people were wounded in gunbattle elsewhere in the capital as the government unveiled emergency measures to crush the rebellion.(AFP/Ahmad Al-Rubaye)
Iraq's interim Prime Minister Iyad Allawi arrives to deliver a statement in which he condemned a rocket attack which injured one person near his house in Baghdad July 7, 2004. Insurgents battled U.S. troops and Iraqi security forces in central Baghdad on Wednesday as Allawi's interim government announced a new security law giving itself wider powers to combat militants and stabilize the country. REUTERS/Akram Saleh
An Iraqi policeman holds back a greiving Iraqi man trying to run inside a hospital searching for his dead brother near Martyrs' Square in Baghdad, Iraq Wednesday July 7, 2004. At least four people were killed and 20 others injured in running gun battles between U.S.-back Iraqi National guard and masked insurgents. (AP Photo/David Guttenfelder)
U.S. soldiers kick down a door as they carry out house to house searches near Martyrs' Square in Baghdad, Iraq Wednesday July 7, 2004. At least four people were killed and 20 others injured in running gun battles between U.S.-backed Iraqi National guard and masked insurgents. (AP Photo/David Guttenfelder)
A U.S. Army soldier asks an Iraqi girl to move away from an area during clashes between U.S forces and insurgents in the Iraqi capital of Baghdad July 7, 2004. Insurgents battled U.S. troops and Iraqi security forces in central Baghdad on Wednesday as the interim government signed into effect a new security law giving itself wider powers to combat militants. REUTERS/Akram Saleh
U.S. Army soldiers secure an area during clashes between U.S forces and insurgents in the Iraqi capital of Baghdad July 7, 2004. Insurgents battled U.S. troops and Iraqi security forces in central Baghdad on Wednesday as the interim government signed into effect a new security law giving itself wider powers to combat militants. REUTERS/Akram Saleh
U.S. Army soldiers secure an area during clashes between U.S. forces and insurgents in the Iraqi capital of Baghdad July 7, 2004. Insurgents battled U.S. troops and Iraqi security forces in central Baghdad as the interim government signed into effect a new security law giving itself wider powers to combat militants. Photo by Akram Saleh/Reuters
A neighbor of Iraqi Prime Minister Iyad Allawi checks damage in his house following a blast in Baghdad.(AFP/Karim Sahib)
US soldiers take position during clashes between US and Iraqi forces against insurgents in central Baghdad.(AFP/Ahmad Al-Rubaye)
A hospital worker covers the body of an Iraqi national guardsman following heavy fighting between Iraqi security forces and insurgents in central Baghdad, Iraq Wednesday, July 7, 2004.(AP Photo/Karim Kadim)
A U.S. Army soldier guides a detainee to a waiting vehicle after U.S. and Iraqi security forces fought with gunmen in Baghdad July 7, 2004. Insurgents battled U.S. troops and Iraqi security forces in central Baghdad on Wednesday as the interim government announced a new security law giving itself wider powers to combat militants and stabilize the country. REUTERS/Zohra Bensemra
An Iraqi National Guardsman is comforted by soldiers after a colleague was killed in a gunfight with insurgents in Baghdad, July 7, 2004. Insurgents battled U.S. troops and Iraqi security forces in central Baghdad on Wednesday as the interim government announced a new security law giving itself wider powers to combat militants and stabilize the country. REUTERS/Zohra Bensemra
Family members grieve after an Iraqi National Guard officer died during a heavy gunbattle with insurgents in central Baghdad, Iraq Wednesday, July 7, 2004.(AP Photo/Karim Kadim)