Eisaku Satō
Prime Minister Eisaku Satō and Foreign Minister Takeo Miki had explained to the Japanese parliament that "the return of the Bonins had nothing to do with nuclear weapons yet the final agreement included a secret annex, and its exact wording remained classified." A December 30, 1968, cable from the U.S. embassy in Tokyo is titled "Bonin Agreement Nuclear Storage," but within the same file "the National Archives contains a 'withdrawal sheet' for an attached Tokyo cable dated April 10, 1968, titled 'Bonins Agreement--Secret Annex,'".