Menorandum For Dr. Litby, Commissioner, United States Atomic Energy Commission, Subj: (U) Meesuremant of Local Fall-Out in atomic Test Operations e. I believe that the members of the ASC and the Defensa Departnent that have been engas2d in measurements of Bll-out during past atomic test operations ought to be commended for their diligence, for their vatience, and for their capability in getting sone results in the face of odds th.t aprear insurmountable to me. The Air Force has been conscious of the many errors involved in any fall-out measurement in the PPG to date. Hence, we have not participated in such tasts nor have we 2ven suggested such participation, This is because we hava felt that the effort to date, although relatively large compared to some other test projects, nas nevertheless been too small to measure total fall-out in the PPG with any high probability o2 success, (Ep a 48 NORAIR NM. LULSJIAN Lt Colonel, USAF Chief, Nuclear Applications Division Nor Decunel tT S IGN Rsioceate Nationals Qr Th THIS M!} THE NA™IO7F WITHIN iz "TM TITLE 13, Uae B presentatives. ES T AVAILABLE Copy AFFECTING STATES , SPIONAGE LAWS. TRANSMI DOE ARCHIVES 6785460 q

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