FILE - In this file photo taken Wednesday, Sept. 12, 2012, a man looks at documents at the U.S. Consulate in Benghazi, Libya, the day after an attack that killed four Americans, including Ambassador Chris Stevens. A strange silence has met the U.S. capture of a Libyan militant accused in the 2012 attack that killed the American ambassador and three others. In his hometown of Benghazi in eastern Libya, there have been few threats of revenge, only speculation among supporters and opponents that Ahmed Abu Khattala was betrayed by an insider. (AP Photo/Ibrahim Alaguri, File)