BERLIN, GERMANY – JULY 07: An American flag flies in front of the Brandenburg Gate, near the embassy of the United States of America, on July 7, 2014 in Berlin, Germany. A German employee of his country’s foreign-intelligence agency, known as the Bundesnachrichtendienst (BND), was arrested on suspicion of working as a double agent for the United States National Security Agency (NSA), a further blow to German-U.S. relations after suspicions that the latter agency had listened in on German Chancellor Angela Merkel’s mobile phone. Investigations into the exact extent of the American government’s surveillance in the country are ongoing. Reports from former U.S. intelligence employees have stated that U.S. embassies around the world have contained sophisticated eavesdropping equipment used to gather surveillance on their host countries for decades. (Photo by Adam Berry/Getty Images)