NORFOLK Thirteen Somalis and one Yemeni captured after four Americans were killed aboard a yacht last month are scheduled to appear in U.S. District Court in Norfolk this afternoon on piracy, kidnapping and gun charges. The men were brought into the federal courthouse in downtown Norfolk this morning. The group was turned over to the Justice Department on Wednesday after being held aboard the carrier Enterprise since the Feb. 22 shooting deaths of the Americans. A Navy spokesman said the Somalis were removed from the ship by Department of Justice officials. A federal grand jury indicted 14 suspected pirates, the...