'... the Oswald case is one of the most disgraceful phenomena'

"The bolt clicked open. Vladimir Kryuchkov, dressed in a dark suit, stood in the doorway. 'You are welcome,' the spymaster said.

"I began with a few dutiful Cold War questions. I asked about Lee Harvey Oswald's prolonged stay in Minsk, and the Kennedy assassination. 'The Soviet Union had nothing to do with the assassination,' Kryuchkov said. 'I know that…