>>2612442
Greer was more of a true researcher and truth-seeker in the first 5 years or so of his work on the UFO issue. In the mid-90s both he and his senior assistant (a woman named Sherri Adamiak I think) were given cancer by people pissed off with their work.
Greer seems to have struck some kind of bargain with the DS at that time. Adamiak died but Greer somehow cured his cancer (he's never said how really). I suspect he was given the cure in exchange for re-directing the aims of his UFO research.
After his 2001 conference, Greer got progressively less interested in identifying new witnesses and taking their testimony, and more interested in the 'galactic diplomacy' end of things. Inviting aliens for pow-wows in the desert.
Greer also changed physically after the cancer scare. He was a pretty scrawny guy before that, and then he got ripped. Maybe he just hit the gym really hard. OR maybe 'they' modified him somehow. I do know he lost a lot of friends around that time as they found him a 'different person' in many ways.