FILE - In this Friday, Sept. 14, 2012 file photo, Libyan military guards check one of the U.S. Consulate's burnt out buildings during a visit by Libyan President Mohammed el-Megarif, no

 

              FILE - In this Friday, Sept. 14, 2012 file photo, Libyan military guards check one of the U.S. Consulate
FILE - In this Friday, Sept. 14, 2012 file photo, Libyan military guards check one of the U.S. Consulate's burnt out buildings during a visit by Libyan President Mohammed el-Megarif, not shown, to the U.S. Consulate to express sympathy for the death of the American ambassador, Chris Stevens and his colleagues in the deadly attack on the Consulate last Tuesday, September 11, in Benghazi, Libya. Britain's Foreign Office urged U.K. nationals to immediately leave the eastern Libyan city of Benghazi in response to an imminent threat against Westerners. The Arabic on the building reads, "God is Great, and there is no God but Allah and Mohammed is his messenger." (AP Photo/Mohammad Hannon, File)