Plan 9 from outer space

Throughout the 1950s CIA files clearly document an explosion of activity by US intelligence and military bodies concerned with studying every possible implication for the US, and other Western democracies, of UFOs. The phenomenon, so adored by the cinematic world, was reflected in the CIA's fixations. Indeed, while highly educated CIA employees experimented by giving each other surprise LSD trips in 1953, there were others, in other parts of the agency, dealing with a flood of UFO reports.

Intriguingly, the unclassified documents show that within the CIA, there was an uber-intelligence group called ONE, created by a CIA director, General William Bedell Smith. His tenure spanned the period between October 1950 and January 1953. These documents confirm that ONE was concerned with UFOs.

(via Professor Hex)