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

itoggle caption 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

itoggle caption 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

itoggle caption 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

itoggle caption HO/UPI/Landov

The NSA used a program codenamed Dishfire to collect text messages worldwide that were then used to extract location and financial data, according to The Guardian. Here, women use their cellphones in Los Angeles earlier this month. Frederic J. Brown/AFP/Getty Images hide caption

itoggle caption Frederic J. Brown/AFP/Getty Images

The NSA can reportedly monitor what's going on with 100,000 computers around the world. Gregorio Borgia /AP hide caption

itoggle caption Gregorio Borgia /AP

The National Security Agency headquarters building in Fort Meade, Md. Reuters/Landov hide caption

itoggle caption Reuters/Landov