As for future weapons nor oe NAGS tests, McCone said that "he had expressed the view at the conference that there is a need for distingui shing between . - 2 weapons tests that are absolutely essential and those wtich are desireable. but have only marginal importance. As an example, he said at a request by the DOD for a 20 kiloton weapon with a plus or minus factor of two kilotons. Such a weapon would require several test detonations to perfect. On the other hand, the laborato ties now can develop a 20 kiloton weapon with a plus or minus factor of 5 kilotons without conducting any test detonations, "' Meeting #1499,' 29 April 59: McCone read to the Commissioners a draft letter which Eisenhower intended to send to Khrushchev; Starbird recommended certain changes to inspections and the new scientific data now available. pertaining The Commission then approved the suggested changes and McCone requested Starbird to discuss this with Farley of the State Department. Note that on or just before 8 May 59 Deputy Secretary of Defense Quarles died, Note, that in a meeting on 12 May 59, Luedeke reported on the upcoming adjournment of the Geneva talks until 8 June 59, that the AEC representatives, Al Graves and The Commission agreed Sterling Colgate, should return to the US and a meeting should be set up with the Commission to discuss the conference negotiations with them, 97

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