Nazi doctors , clowns , University " studies " all ties together.
In a memo describing the purpose of one MKULTRA program subprogram, Richard Helms said: We intend to investigate the development of a chemical material which causes a reversible, nontoxic aberrant mental state, the specific nature of which can be reasonably well predicted for each individual. This material could potentially aid in discrediting individuals, eliciting information, and implanting suggestions and other forms of mental control. — Richard Helms, internal CIA memo
https://en.wikipedia.org/wiki/Unethical_human_experimentation_in_the_United_States
this is just what we know about.