Part of a file from the CIA, dated Oct. 10, 1963, details “a reliable and sensitive source in Mexico” report of Lee Harvey Oswald’s contact with the Soviet Union embassy in Mexico City, that was released for the first time on Friday, Nov. 3, 2017, by the National Archives.

Part of a file from the CIA, dated Oct. 10, 1963, details “a reliable and sensitive source in Mexico” report of Lee Harvey Oswald’s contact with the Soviet Union embassy in Mexico City, that was released for the first time on Friday, Nov. 3, 2017, by the National Archives.