Mohamed Osman Mohamud, then 19, is shown after his arrest on Nov. 26, 2010, in Portland, Ore. Mohamud was convicted of planning to detonate a bomb during a Christmas tree-lighting ceremony, but his sentencing is on hold after revelations that investigators relied to some degree on NSA surveillance. Getty Images hide caption

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Bureau of Alcohol, Tobacco, and Firearms Director B. Todd Jones speaks in the Roosevelt Room of the White House on Aug. 29. Susan Walsh/AP hide caption

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ATF Chief Faces Tough Challenge At Troubled Agency

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NSA Releases 1,000 Declassified Documents

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An all-plastic gun fires a bullet in this screenshot from a video made by the Bureau of Alcohol, Tobacco, Firearms and Explosives. ATF hide caption

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Plastic Guns Made With 3-D Printers Pose New Security Concerns

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What Happens To Guantanamo After The War In Afghanistan Ends?

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When It Comes To Public Opinion, More News Is Not Good News For NSA

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Families Of Drone Strike Victims Tell Their Stories

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NGOs Call U.S. Drone Program Illegal In Damning Reports

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A gay rights activist waves a rainbow flag in front of the U.S. Supreme Court in June, a day before the ruling on the Defense of Marriage Act. Nicholas Kamm/AFP/Getty Images hide caption

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Getting Federal Benefits To Gay Couples: It's Complicated

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Has Elite Interrogation Group Lived Up To Expectations?

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Suspected Embassy Bombing Planner Pleads Not Guilty In Federal Court

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Snowden's Leaks Lead To More Disclosure From Feds

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Raids In Somalia, Libya Spur Legal Questions

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