If it sounds hard to believe, historian Lamar Waldron lays it all out in 944 pages of painstaking detail in his book Legacy of Secrecy: The Long Shadow of the JFK Assassination.
My two part conversation with Lamar Waldron:
Part One:
Part Two:
"To discover to the world something which deeply concerns it, and of which it was previously ignorant; to prove to it that it had been mistaken on some vital point of temporal or spiritual interest, is as important a service as a human being can render to his fellow creatures..." John Stuart Mill, "On Liberty"