These were the most gruesome experiments the U.S. government ever conducted on human beings. In one of the them, seven prisoners in Lexington, Kentucky, were given multiple doses of LSD for 77 days straight. In another, captured North Koreans were given depressant drugs, then dosed with potent stimulants and exposed to intense heat and electroshock while they were in the weakened state of transition. These experiments destroyed many minds and caused an unknown number of deaths. Many of the potions, pills and aerosols administered to victims were created at Detrick.
…A decade of intense experiments taught Gottlieb that there are indeed ways to destroy a human mind. He never, however, found a way to implant a new mind in the resulting void. The grail he sought eluded him. MK-ULTRA ended in failure in the early 1960s. “The conclusion from all these activities,” he admitted afterward, “was that it was very difficult to manipulate human behavior in this way.”
Nonetheless Fort Detrick, as it was renamed in 1956, remained Gottlieb’s chemical base. After the end of MK-ULTRA, he used it to develop and store the CIA’s arsenal of poisons. In his freezers, he kept biological agents that could cause diseases including smallpox, tuberculosis and anthrax as well as a number of organic toxins, including snake venom and paralytic shellfish poison. He developed poisons intended to kill Cuban leader Fidel Castro and Congolese leader Patrice Lumumba.