The Marine Corps is charging two of its own in connection with a theft ring that involved the stealing of secret files on potential terrorists. The widening investigation already has produced one conviction. Both Marines were called back to duty at Camp Pendleton and charged in late June with breaking military law, though the charges were not announced until yesterday. Gunnery Sgt. Eric L. Froboese and Master Sgt. Reinaldo Pagan, both reservists, were charged as part of a probe into the mishandling and compromise of classified information, the Marine Corps said. Pagan is charged with dereliction of duty and orders...