Draft Letter to Chaixnan, JCAL from the Generel Manager On 34 September Mr, Donovan, oetion of Congressional Liaison, ARC, delivered to Mr. Haney in advance of releasa e public sunouncessnt relative to the HARDTACK series. Our announcement indicated that we tukended to eek U.H, observers, a9 wll as international press, to witness one detonation of a device of low radionctive fellout. we indtoated that we were examining the problem of observation to deter~ mine whet instrumentation aight be allowed to the U.N. odservers without revealing important mclear dasign information. After detailed study with the DOD, the Commander, JTV, and cur laboratory directors, we have concluded thet: a Any program, if to be canvineing to observers, vould necessarily involve the risk of revealing to the Soviets certain aspects of mlear design inforuation. db. If not convincing, o demonstration would, undoubtedly, react unfayorehly on the U.&. c. | Under such condition, 1t would be test far cur natianel interest that the proposed program not be curried cut and that there be no attendesce by U.H. observers or the press at BARDTACK. The next planed public announcement sonserning HARDIACK would. be one to announce tia Commander and Organisation of the Joint Task Force. Goordingtion of the plane for thie are unlervay end a release is expected in the latter; part of Jamary. It is our intent to announce publicly

Select target paragraph3