In the U.S. the Paperclip Nazis were given a craft to transplant victims to the lab and a post-hypnotic cover story to replace those invaluable camps. That they pulled it off by making the public believe in aliens is positively amazing. It's done through repetition. They don't have much to say about mind control, however. Classified technology is beyond the imagination of most people.
Levitation is old hat.
Synthetic telepathy is old hat. When the imaging equipment was used on me, I could remote view nine areas of the world at the same time. I'm not speculating. The mind control arsenal is often used for torture. The world that emerges with it in the wrong hands will be not worth living in.