**FILE** A Libyan military helicopter flies Sept. 21, 2012, over a demonstration at Victory Square in Benghazi, Libya, by Ansar al-Shariah Brigades and other Islamic militias. The attack that killed the U.S. ambassador and three other Americans has sparked a backlash among frustrated Libyans against the heavily armed gunmen, including Islamic extremists, who run rampant in their cities. More than 10,000 people poured into a main boulevard of Benghazi, demanding that militias disband as the public tries to do what Libya's weak central government has been unable to. (Associated Press)