Papers of John F. Kennedy. Presidential Papers. National Security Files
This file contains a copy of National Security Action Memoranda number 185 (NSAM 185) titled, “Approval of Additional Nuclear Tests,” to Secretary of Defense Robert S. McNamara and Chairman of the Atomic Energy Commission (AEC) Glenn T. Seaborg from President John F. Kennedy. Also included is a letter to the President from Secretary McNamara and Chairman Seaborg regarding high altitude nuclear tests in the Johnston Island area and a request for approval of additional tests.