A Libyan military guard stands in front of one of the U.S. Consulate's burned out buildings on Sept. 14. The U.S. is offering new details of the attack on the consulate that killed four Americans, including Ambassador Chris Stevens. Mohammad Hannon/AP hide caption

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Damage inside the burnt U.S. consulate in Benghazi after an attack on the building Sept. 11. Gianluigi Guercia/Getty Images hide caption

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