The Pentagon on Wednesday denied a claim by an Iraqi insurgent group that it had captured a U.S. Marine in western Iraq. The Army of Ansar al-Sunna said on its Web site that it would soon issue pictures of the Marine, who it said it captured after ambushing U.S. forces near the town of Haditha, northwest of Baghdad. The U.S. military said on Tuesday six Marines were killed on Monday in the same area. The body of one Marine was initially unaccounted for but was recovered later, according to the statement. Full Story