In this file photo taken in January, a U.S. Predator drone flies above Kandahar Air Field in southern Afghanistan. Kirsty Wigglesworth/AP hide caption

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President Obama delivers the commencement speech during graduation ceremonies at the United States Military Academy at West Point on May 22. During the speech, the president touched on key themes of his new national security goals — such as multilateralism and global outreach — to be unveiled Thursday. Michael Nagle/Getty Images hide caption

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Kenyan Muslims in Nairobi carry posters of Jamaican cleric Abdullah Faisal and throw stones at police during a Jan. 15 demonstration demanding Faisal's release from Kenyan custody. U.S. intelligence officials say Faisal was recruiting for al-Shabab, a Somali Islamic militia with links to al-Qaida. Faisal denies the allegations. He was eventually returned to Jamaica from Kenya. Simon Maina/AFP/Getty Images hide caption

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Director of National Intelligence Dennis Blair, seen here in February, offered his resignation Thursday. During the 16 months on the job, Blair struggled to establish his authority over the CIA and other U.S. intelligence agencies. Manuel Balce Ceneta/AP hide caption

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Jan. 9, 2009: On the day he was named as President Obama's choice for national intelligence director, it was already clear that retired Adm. Dennis Blair was stepping into a difficult role. Charles Dharapak/AP hide caption

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