The Post looks back at some of the most audacious missions from the CIA archives which have eventually been revealed to the public.

Declassified CIA files reveal that the agency had been at the forefront of bizarre psychological manipulation tactics ...

In another covert attempt at psychological warfare, the CIA in 2005 commissioned GI Joe creator Donald Levine to design an ...

Over the years, declassified documents and reports have detailed Russian alien encounters or mind control experiments ...