U.S. consulate attack in Libya

The American flag stands at half-staff at the U.S. Capitol on Sept. 12, 2012, in Washington, DC. The flag was lowered for U.S. ambassador to Libya J. Christopher Stevens and three other embassy employees who were killed when the embassy in Benghazi was attacked by a mob potentially angered by an American-made video mocking Islam's founding prophet.

Credit: Mark Wilson/Getty Images