Analysis of information sources in references of the Wikipedia article "Πρόγραμμα MKUltra" in Greek language version.
As Vietnam was winding down, the CIA was beset by Congressional investigations that revealed some of the criminal activities it was involved in, like MKULTRA.
Though Project MK-Ultra lasted from 1953 until about 1973, details of the illicit program didn’t become public until 1975, during a congressional investigation into widespread illegal CIA activities within the U.S. and around the world.