FILE - In this Wednesday, April 23, 2008 file photo, U.S. Army soldiers from B Company, 1st Squadron, 2nd Stryker Cavalry Regiment lead a blindfolded man suspected of planting a roadside bomb near their patrol in the Shiite stronghold of Sadr City in Baghdad, Iraq. The man later tested positive for traces of explosives on his hands. In 2003, the U.S. spearheaded an invasion of Iraq, citing various justifications but categorizing the conflict as part of "the Global War on Terrorism." (AP Photo/Maya Alleruzzo)