A declassified memorandum dated October 11, 1967, to United States President Lyndon B. Johnson from his National Security Advisor Walt Whitman Rostow, called the decision to kill Guevara "stupid" but "understandable from a Bolivian standpoint".
11. oktoobril 1967 välja antud memorandumis nimetab USA president Lyndon B. Johnson Rahvusliku Julgeolekuagentuuri juhile Walt Whitman Rostow'le Guevara tapmisotsust rumalaks, aga "Boliivia seisukohast võetuna arusaadavaks".