In the Korean War season of Blowback, they played some clips from this documentary covering the POW internment camps run by the North Koreans.

It's really funny to listen to Ronald Reagan describe the camps as these insidious devices of brainwashing. Descriptions that include things like, there is no fence or barbed wire. When someone does a bad thing, they make them write an essay saying they won't do it again, or having the soldiers stand up and perform acts of public self-critique.

All of this as a means to push the idea that the Communists were attempting to create what was effectively a Manchurian Candidate. Meanwhile, the United States had begun its own research into psychological warfare as well as psychological control.

I haven't watched this video yet, it's only 29 minutes long, but I intend to watch it at some point. And I wanted to post it here for others to view as well.