wan re et DON =TiotoeeLibrary for replacerfent Ot, -“dateriorating manuscript item. Sen re . oe RE October 4, 1956 os 7 ~ . . . , a ea . _ ote “e gle a, aa tas "fe Your personal efforts and continuing leadership toward © control of nuclear energy in the interest, of worlé peace again lead me to present my. views onthe “subject of a limitation on ae \ ry) ete sadclegs weasions * testing. WA Dear Mr. President: I believe we should negotiate safeguarded agreements with f “ap + Les ee the USSR and other nations to limit tests of nuclear weapons to yields not greater than one hundred kilotons. Such agreements would of necessity have to provide for carefully considered inspection measures which are capable of detecting any violation. Plans could be made and development programs continued so that such a violation would be followed by resumption of U. S. testing above one hundred kilotons within a few months. Moreover, our next series of tests of devices above one hundred kilotons is not scheduled until 1958, In the meantime I would hope that you will consider taking independent action to discontinue tests of multi-megaton thermonuclear weapons while at the same time greatly accelerating tests of very small weapons. I stated this view at some length in testimony before the Subcommittee on Disarmament of the Senate Foreign Relations Committee on April 12, 1956. A copy of my prepared statement was sent to your office at that time. i y XY, I recently again stated my views on tests to the other members of the Commission in connection with Governor Stassen's request for a Commission position. It is my prayerful hope that these views may be of some assistance in your efforts to find a solution to the ever-mounting nuclear threat of world destruction. Respectfully yours, . a NS: a a Oy i _ 3. aS 3 & . a dC N Thomas E. Murray Commissioner 2 a = The President The White House ~ RESTRICTED DATA—— This derament contains 1 ia os defteed ctefidas, bs tromenntion fe the Atemic of ie con‘ents im cry moneert Perec is reohthtad. ~oel SECRET - el seth By Axthority of a ar U. & Atomte Beasvgy Commission TOPSpORE~ == * 229677, Pu:hee. €. Bute £2 ~ &. :, \¢ i? :

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