Did putative KGB officer Yuri Nosenko tell the truth when he physically defected to the U.S. in February 1964 (after having falsely defected in-place in Geneva in June 1962 to discredit what recent true defector Anatoliy Golitsyn was telling the CIA) and said that he had been Lee Harvey Oswald's case officer in Moscow (how lucky for J. Edgar Hoover and the CIA!!!) and that he therefore knew for a fact that the KGB had absolutely nothing to do with the "abnormal" former sharpshooting Marine U-2 radar operator?
If author John M. Newman is right in his 2022 book, Uncovering Popov's Mole, that a KGB mole in the CIA's mole-hunting Office of Security sent Oswald to Moscow in late 1959 as an ostensible "dangle" in a (unbeknownst to Oswald) planned-to-fail mole hunt, then maybe the Soviets knew in advance that Oswald was coming, and therefore what he (Nosenko) said was actually true!!!