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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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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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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