3. The briefing material contains very little Restricted Data relating to design or fabrication of atomic weapons. Specifically, the only Restricted Data is the approximate expected yields shown in the table attached to Appendix "B". A footnote on the second page of the text (Appendix "B") states that Dr. Ogle will give information from this table only for the shot which the observers will see plus any other shots which at the time of briefing have been unclassified, publicly announced. To date only the LACROSSE and shots have been announced. Since the 1. e.,, CHEROKEE talk will not present a veryclear picture of Operation REDWING with only three snots mentioned the staff recommends that the entire table of shots be used with certain changes and that the above mentioned footnote be deleted. The first change would delete the column giving the date so the British would not be able to correlate each shot with their long range detection measurements or debri samples. The second change would substitute "Low KT" (less tha 100 KT), "High KT" (100-999 KT), and "Megaton" (1 MTP or greater for the Approximate Expected Yield. Otherwise, by averaging th approximate expected yields the British could get a close estimate of thé total yield from the REDWING series. This woul be undesirable since requirements of tre intelligence cooperattl program will require giving the British later total fission yield for the series. In staff discussions with DOD personnel the above changes were thought to be acceptable, 4, Since the proposed talk, with the above changes, no longer contains Restricted Data a joint determination under Section l44b is not required and the Commission need only coneul with the use of the proposed material for briefing the foreign observers, MLC, See Appendix Wout “c, - 2? the proposed reply to the Chairmar .« rena

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