Pages 69-71 from Truman. Papers of Harry S Truman. President's Secretary's Files. Box 174-8

This document is a memorandum from the Joint Chiefs of Staff to the President regarding the retention of atomic weapons secrets. The Joint Chiefs of Staff believe that the United States should keep existing secrets about atomic weapons for the time being. Their reasons include the likelihood that other countries will need several years to develop the necessary plants and techniques, the absence of international control and agreements to prevent an atomic armament race, and the vulnerability of the United States to atomic attacks. They argue against unilateral disclosure, as it may be seen as a sign of weakness and not contribute to reducing suspicion and distrust. The Joint Chiefs of Staff also highlight other secret weapons and devices possessed by the United States, closely related to atomic warfare, and their belief that technical advances should not be shared without adequate international machinery to regulate armaments. However, they stress the importance of pursuing political measures promptly to prevent a race in atomic weapons and strengthen defenses. These measures may include public declarations, discussions with foreign governments, and the exploration of international controls to restrict the use of atomic weapons and promote the development of atomic energy for peaceful purposes. The document concludes by emphasizing the immediate importance of political controls given the possibility of other nations developing atomic weapons in the future.