I made a post the other day re: Truman’s OpEd - regarding the CIA. It was made in DEC. 1963 - the month after the assassination. Clearly he knew or suspected that the CIA had been involved.
He also knew about the Bilderbergers. I think they might have invited him to attend. He said something on the order of why the h3ll would I do that - I don’t need anyone telling me what to do.
Truman was pretty exceptional.
A number of years ago I thought I read about how similarly to Truman’s regret about forming the CIA, Wilson was supposed to have said he regretted the formation of the Federal Reserve.