INDIANAPOLIS - A Marine from Indiana whose smiling, cigar-smoking image helped symbolize the fall of Baghdad a year ago suffered severe head injuries in fighting this week in the besieged Iraqi city of Fallujah. AP Photo Gunnery Sgt. Nick Popaditch, 36, of Terre Haute, marked Friday's one-year anniversary of the fall at a U.S. military hospital in Landstuhl, Germany. Surgeons removed a piece of shrapnel that lodged near his optic nerve when a rocket-propelled grenade slammed into his tank Tuesday in Fallujah, his wife said Friday. "He had to have his right eye removed. He's very concerned about that," April...