** FILE ** A Libyan man investigates the inside of the U.S. Consulate in Benghazi after the attack that killed Ambassador J. Christopher Stevens and three other Americans on Tuesday, Sept. 11, 2012. (Associated Press)

** FILE ** A Libyan man investigates the inside of the U.S. Consulate in Benghazi after the attack that killed Ambassador J. Christopher Stevens and three other Americans on Tuesday, Sept. 11, 2012. (Associated Press)