At the conclusion of a March 2018 presentation by John M. Newman on Tennent H. Bagley's book, Spy Wars, Peter Dale Scott asked him if he was convinced that the Oswald who "returned" to the U.S. from Russia in June 1962 was the same one who had "defected" to it in October 1959.
Then he shared the following anecdote:
He was talking with Marina on the phone one day when he happened to mention the Russian writer, Turgenev, and Marina exclaimed, "Oh! Alek LOVED Turgenev!"
In a conspiratorial tone of voice, Scott told the assembled group, "Oswald didn't check out any books by Turgenev from the library."
You can read into it what you will.