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Sen. Rand Paul, R-Ky., in front of the federal district court in Washington, where he filed his lawsuit against the Obama administration and the NSA. Charles Dharapak/AP hide caption

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Charles Dharapak/AP

Thousands of websites participating in the "Day We Fight Back" will show this banner, or something similar, to site visitors. Courtesy of Demand Progress hide caption

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Courtesy of Demand Progress

Director of National Intelligence James Clapper testifies during a hearing before Senate Select Intelligence Committee on Wednesday. Alex Wong/Getty Images hide caption

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Alex Wong/Getty Images

Surveillance camera video of Aaron Alexis, a contractor who killed 12 people at the Washington Navy Yard on Sept. 16, 2013. Alexis was one of thousands of individuals cleared by the firm known as USIS. HO/UPI/Landov hide caption

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