Body Of Secrets. How America'S Nsa And Britain'S Gchq Eavesdrop On The World

In the popular imagination, the CIA is the largest and most powerful security service in the world. In reality, the CIA is dwarfed by an agency hidden far deeper in the shadows: the National Security Agency. From relatively small beginnings with the breaking of the German Enigma cipher, the NSA and GCHQ - its equally secret British partner - have created the largest espionage organisation the world has ever known, one capable of eavesdropping on conversations virtually anywhere on the planet. Echelon, their joint operation that targets worldwide communications channels, has raised concerns - and even outrage - around the world, particularly among Britain's European partners. Body of Secrets is the ultimate guide to the workings of this hitherto top secret organisation.