The U.S. military cannot hunt down and kill people responsible for the deadly 2012 attack on an American compound in Benghazi, Libya, as long as the terrorists are not officially deemed members or affiliates of al Qaeda, newly declassified transcripts from congressional hearings show. Chairman of the Joint Chiefs Gen. Martin Dempsey in testimony on Oct. 10 said the Pentagon’s hands are tied because the groups involved are not covered by the Authorization for Use of Military Force. The AUMF law allows U.S. attacks anywhere in the world only on al Qaeda and “associated forces.” “The individuals related in the...