The Hart Report, also known as the Monster Plot Report, sought to denounce the Central Intelligence Agency’s Counterintelligence Staff in general and its chief, James Angleton, in particular, and is frequently cited as evidence of Angleton’s paranoia and incompetence. While Angleton and others strongly disagreed with John Hart’s findings, they agreed him on one important point - the report was libel.

Eleven years before the House Select Committee on Assassinations declared they were “certain Yuri Nosenko lied about Lee Harvey Oswald,” the Central Intelligence Agency’s internal security report ignored evidence and abandoned logic to conclude that the Soviet defector was a trustworthy individual who hadn’t been sent over by the KGB.