ee o, Noted that the General Advisory Committee will be briefed on the HARDTACK program during their visit to Los Alamos on November 21-23, and their comments on the program will be transmitted to the Commission. 1313th AEC 13, AEC 952/20 - Demonstration Shot for HARDTACK Meeting 11/6/57 oneness Under ecnsideration was AEC 952/20 - Demonstration Shot for HARDTACK, which presents alternative approaches to the firing of a proven clean design for the purpose of demonstrating to a United Nations observation team that the U.S, has produced nuclear weapons having a greatly reduced fallout. Mr, Libby commented on the expense and the practical difficulties posed by such a demonstration shot. General Starbird noted that, since the proposed demonstration shot involved the danger of vompromising classified information, the Presidant could be advised that the effectiveness of clean design could not be convincingly demonstrated without revealing weapons design information. Mr. Strauss sugsested and the other Commissioners agreed that he present to the President the Commission's position regarding the security hazards of a demonstration shot and request further guidance, Lh. 1 iP on TED .o & Miedicd PBAO2LL, ExWG... fTas Phe (a8,

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