WASHINGTON - A music video posted to the Internet, telling a tale about a U.S. Marine killing members of an Iraqi family, is being condemned by an Islamic group and investigated by the Marine Corps. The four-minute video, called "Hadji Girl," appears to be sung by a Marine in front of a cheering audience. The lyrics talk about the Marine gunning down members of an Iraqi woman's family after they confront him with automatic weapons. Lt. Col. Scott Fazekas, a spokesman for the Marines, said Tuesday that the Marines were aware of a video posted on the Internet that "purports...