SADR CITY LAUGHTER U.S. Army Sgt. Thomas Dwyer laughs with Iraqi children while on a patrol in the Sadr City district of Baghdad, Iraq, July 28, 2008. Dwyer is a military policeman assigned to the 4th Infantry Division's 3rd Brigade Combat Team. SHARE: Download: Full Size (0.09 MB) Credit: VIRIN: 616265-W-PTA09-516.jpg Photo Gallery