This file photo taken on September 11, 2012, shows a vehicle and the surrounding area engulfed in flames after it was set on fire inside the U.S. mission compound in Benghazi. A long-awaited inquiry into a deadly militant attack on the US mission in the Libyan city of Benghazi late on December 18, 2012 slammed State Department security arrangements there as "grossly inadequate." But the months-long probe also found there had been "no immediate, specific" intelligence of a threat against the mission, which was overrun on September 11 by dozens of heavily armed militants who killed four Americans. (Image source: STR/AFP/Getty Images)