I didn't say the CIA recruited him to infiltrate anything. No one is saying he's a secret agent. I'm just saying it's possible that there is a history of cooperation of some form or another since he was a young activist and through an extraordinary career, which has led him to be "trusted completely since."
I don't believe it because I don't know, but I don't think it's insane to consider or that the existence of a relationship is impossible on face value because he was merely a young activist in the 70s.