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A picture taken on February 8, 2019 shows the logo and name of the German Federal Intelligence Service (BND) on the facade of its headquarters in Berlin. - Located where the Berlin Wall once dissected the city, the 1.1 billion euro ($1.25 billion) complex now houses 4,000 of the spy agency's 6,500 staff.
Built on the former site of an East German sports stadium, it is one of the world's largest secret service bases at 10 hectares (25 acres), the size of 36 football fields. (Photo by JOHN MACDOUGALL / AFP) (Photo by JOHN MACDOUGALL/AFP via Getty Images)