BERLIN, GERMANY - SEPTEMBER 25: Activists protesting for more information about the cooperation between the U.S. National Security Agency (NSA) and the German federal intelligence service (BND) hold a banner calling for former NSA employee Edward Snowden to come to Germany to testify on September 25, 2014 in Berlin, Germany. The Bundestag's NSA investigative commission met later in the day to here the testimony of two BND employees over the use by the BND of the NSA's X-Keyscore surveillance software. The Bundestag launched its NSA investigation commission after revelations last year that the NSA had eavesropped on the mobile phone communications of German Chancellor Angela Merkel and other leading German politicians over a number of years. (Photo by Sean Gallup/Getty Images)
