U.S. Marines fleeing a suicide bomber and militant ambush on Sunday opened fire on civilian cars and pedestrians on a busy highway in eastern Afghanistan, wounded Afghans said. Up to 10 people were killed and 35 wounded in the violence, officials said. A suicide attacker detonated an explosives-filled minivan as the American convoy approached, then militant gunmen fired on the troops inside the vehicles, who returned fire, the U.S. military said. Full Story