Islamist militants raided the In Amenas natural gas field (pictured) in Algeria on Wednesday and took several hostages. BP/AP hide caption

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This photo, released on Saturday by the French Army Communications Audiovisual office (ECPAD), shows French Mirage 2000 D jets flying over Mali. ECPAD/Xinhua /Landov hide caption

itoggle caption ECPAD/Xinhua /Landov

A map shown Sunday during a news conference held by French Defense Minister Jean-Yves Le Drian in Paris shows the movement of French troops and aircraft n Mali. Kenzo Tribouillard /AFP/Getty Images hide caption

itoggle caption Kenzo Tribouillard /AFP/Getty Images

Sept. 11, 2012: A blaze erupted during the attack on the U.S. consulate in Benghazi, Libya. AFP/Getty Images hide caption

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This 2010 image, provided by IntelCenter, shows Humam Khalil Abu-Mulal al-Balawi in a posthumous video message posted on extremist websites. The al-Qaida double agent killed seven CIA operatives, a Jordanian spy and himself when he set off a bomb strapped to his body at a base in Afghanistan in December 2009. AP/IntelCenter hide caption

itoggle caption AP/IntelCenter