Over at his blog, Mark Pilkington - author of the book Mirage Men - discusses the strange case of friend to the Space-Brothers, Orfeo Angelucci (whose story is told in my Contactees book).
As Mark notes, Angelucci recorded in his 1959 book Son of the Sun a weird experience that occurred in 1954, when he may have been the unwitting player in some bizarre MKUltra-type experiment - one that had everything to do with clandestine psy-ops, concerns about Communism, and nothing to do with literal aliens.
As Mark says: "So how’s this for a temporary working hypothesis? Adamski and others were claiming alien contacts and espousing anti-American beliefs. Meanwhile Orfeo Angelucci and fellow contactee George Van Tassel, both employed at one of the US’s most advanced aircraft development plants, also claimed contacts with space beings. Angelucci, as it happens, had previously sparked a police hunt after launching balloons containing the aspergillus clavatus mould, a fact sure to have drawn the FBI’s attentions. Were Angelucci and Van Tassel given some kind of hallucinogen, deployed as a ‘truth drug’ to quiz them about possible Communist or Soviet sympathies and, perhaps to pump them full of extraterrestrial anti-Commie rhetoric for good measure?"
And here's Mark's full post, which I strongly urge you to read!