APPENDIX "G" JOINT MESSAGERORM FROM: HQ USAF APOAT-1 WASH DC TO: Dr. Hans A. Bethe Cornell University Ithaca, New York CITE SWTD 8768 Starbird has submitted to us a question for the opinion of the Bethe Panel. The questions arise from the U.S. offer to allow foreign observers at a test of a U.S. clean weapon where they will be shown to the extent practical without revealing important nuclear design information, device was relatively clean. that the Since preparations must go forward immediately, he has asked for the earliest possible reply. After detailed consultation it appears that there are two possible ways of fulfilling this obligation. iiicaarrmarcertaurayanunnponvummensiss sal Total yield would be given observers and, so as to establish the portion of the debris analyzed, a tracer or tracers known to the observers and in known quantity would be added to the weapon. This method if it can be carried through in some way without revealing important design information would, of course, be most convincing. however, We would have to assume, that remote samples would be secured by the Soviet and analyzed. For the second approach, two shots of a megaton or two would be fired, one of standard design and one clean. - 20 en tome CS ASD Te Sn ee es vd actoesd proces Ra oii Jt They would Appendix "G" _ Fer

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