The curse of my curses, seven days every day
Efforts to “recruit” subjects were often illegal, even though actual use of LSD was legal in the United States until October 6, 1966. In Operation Midnight Climax, the CIA set up several brothels in San Francisco, California to obtain a selection of men who would be too embarrassed to talk about the events. The men were dosed with LSD, the brothels were equipped with two-way mirrors, and the sessions were filmed for later viewing and study.
Some subjects’ participation was consensual, and in these cases they appeared to be singled out for even more extreme experiments. In one case, volunteers were given LSD for 77 consecutive days.