Frank Olson was there at the inception of MK Ultra. He worked hard at developing mind control drugs, but eventually something got in the way - a conscience. Olson tried to free himself from the awful world he had stumbled into. But "they" would not let him go...
Episode 264 - MK Ultra and the Quest for Mind Control - Part 1
After WWII ended the CIA thought the West was in imminent danger of succumbing to a red tide sweeping the world. They would do anything to win. Anything - including trying to control mindds and turn people into potentially murderous slaves.