"Black-clad members of a Shiite Muslim militia that battled U.S. forces nearly two years ago took to the streets of an eastern Baghdad neighborhood Thursday evening following a pair of car bombings that killed at least 11 people and wounded dozens. The blasts -- the first of which erupted near a fuel truck, sending a billowing fireball skyward -- came minutes apart in the capital's Amin district. Along with several residents, members of the Mahdi Army, which staged two violent uprisings against U.S. forces in 2004, blamed American troops for the attacks, claiming they had not permitted the militia to police the area on its own."