Suicide car bombers blew themselves up in a series of attacks within hours across the Iraqi capital on Friday, and U.S. forces said 20 Iraqis were killed. The U.S. military reported seven blasts in Baghdad, at least three of which were suicide car bombs. Reuters journalists saw the aftermath of five big explosions, all of which Iraqi police sources said were suicide car bombs. Al Qaeda claimed responsibility for five suicide attacks. At least two attacks struck U.S. military targets. Three American soldiers were hurt, but none killed, U.S. military spokesman Lieutenant Jamie Davis said. A U.S. statement said five of the dead were Iraqi soldiers and 15 were Iraqi civilians. Full Story