Secretary of State Hillary Clinton on Dec. 6 in Dublin. Kevin Lamarque /AFP/Getty Images hide caption

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Libyan President Mohammed el-Megarif speaks during a memorial service in Tripoli for U.S. Ambassador to Libya, Chris Stevens, and three consulate staff killed in Benghazi on Sept. 11. Abdel Magid al-Fergany/AP hide caption

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Sen. Lindsey Graham, R-S.C., and Sen. Kelly Ayotte, R-N.H., speaking to reporters after their meeting with U.N. Ambassador Susan Rice. Win McNamee/Getty Images hide caption

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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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A burned vehicle outside the U.S. consulate in Benghazi, Libya, after the Sept. 11 attack. Esam Omran Al-Fetori /Reuters /Landov 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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