MK-Ultra, all over again :-/
'...CIA doctors were hunting for a “truth serum” to use on prisoners as part of a previously secret effort called Project Medication. The CIA studied records of old Soviet drug experiments as well as the CIA’s notorious and discredited MK-Ultra program, which involved human experimentation with LSD and other drugs on unwitting subjects. The CIA doctors involved in Project Medication wanted to use Versed, a psychoactive drug similar to some of those used in MK-Ultra, on prisoners.
[....] Perhaps the most striking element of the document is the CIA doctors’ willful blindness to the truth of what they were doing. CIA doctors decided that waterboarding actually “provided periodic relief” to a prisoner because it was a break from days of standing sleep deprivation...'