There are plenty of conspiracy theories out there about the CIA and, in particular, CIA mind control. When it comes to Project MKUltra, however, the conspiracies are frighteningly accurate. The public doesn’t have to rely on hearsay and rumors to judge the project, as there are still MKUltra survivors alive and willing to share their stories, as well as a host of highly redacted documents somewhat detailing the experiments of the program.
MKUltra, a CIA program that ran from 1953-1973, involved the use of LSD and other drugs in an attempt to control minds and, more specifically, pull information from said minds during interrogations. The history behind the program is nearly as insane as the experiments carried out in its name, but the most unbelievable aspect of this entire story is the fact it went on for so long unchecked. Even after the rest of the country caught wind of Project MKUltra and it was finally stopped, the people behind it faced very few actual consequences.
The project was intended to "develop a capability in the covert use of biological and chemical materials," but the way the CIA went about it has been deemed unethical and controversial by the public and fellow government agencies alike.