Nina Crossland holds up a photo of her aunt Phyllis Macay. The U.S. military says pirates killed Macay and three other American hostages they were holding on a yacht off Somalia's coast. Jeff Chiu/AP hide caption

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Mark Potok, director of the Southern Poverty Law Center's Intelligence Project, said he was surprised to discover how much extremist groups had grown from 2009 to 2010. Jamie Martin/AP hide caption

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Julian Assange, shown here Friday in London, is one of four Twitter users and WikiLeaks supporters whose account information the government is seeking. Carl Court/AFP/Getty Images hide caption

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U.S. Attorney General Eric Holder (left) talks with Assistant Attorney General for Civil Rights Tom Perez during the Dr. Martin Luther King Jr. Commemorative Program at the Department of Justice on Jan. 11. The department is putting a focus on civil rights, including developing special units. Chip Somodevilla/Getty Images hide caption

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Inspector General Glenn Fine (right) consults with staff before testifying on the firing of nine U.S. attorneys during a House Judiciary panel hearing in 2008. Pablo Martinez Monsivais/AP hide caption

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In this artist's sketch, Jared Loughner makes his first court appearance in Phoenix, Jan. 10. Bill Robles/AP hide caption

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