Photo Gallery The GCHQ's Special Room Service
Britain's GCHQ intelligence service monitors diplomats' travels using a sophisticated automated system that tracks hotel bookings. Once a room has been identified, it opens the door to a variety of spying options.

An excerpt from a top secret GCHQ document from the archive of NSA whistleblower Edward Snowden.

GCHQ named its program monitoring international diplomat's travel "Royal Concierge". It even has its own logo.

The GCHQ headquarters in Cheltenham. The intelligence agency said that it "neither confirms nor denies the allegation."
Foto: Reuters/ Crown Copyright