meaningless, Teller continues "If testing does not resume, it will be necessary do to development new techniques which xxii not involve nuclear weapons tests, to carry us as far as possible in the development of new nuclear weapons. Depending upon the nature of the designs involved in the full yields desired, one can hope for a substantial measure of development. It is clear, however, that the rate of progress in weapons development would be very markedly decreased by a continuance of the moratorium, even if substitute development efforts were expanded. j . | . ; By - more extensive and elaborate calculations, use of mechanical safing and a more liberal use of fissile material in device design, etc., we would hope even under circumstances of a complete moratorium to be able to make one or perhaps two generations of weapons development progress, at least in some areas. While the uncertainty persist, the become lab is making a very extensive effort to sumz and remain prepared for testing underground and in deep space so as to be able perform such tests if national policy so decides. We consider it our responsibility to be able, in such a case, to obtain the necessary diagnostic data. This constitutes our principal effort) in the testing area which has been cut back from 350 during Hardtack to a level of the order of 150 direct personnel.” The rest of the review notes shet the details of lab developments in the various classes of weapons as well as other programs such as Plowshare, Sherwood, and Pluto. Noted is that some investigation has been given to the detection of tests in outerspace as well as the programs completed and underway for test detection underground. nD - hod of testing. des cription of the met the to s ge an ch r no several mi a One is that the been 0 scaling 1 aw which has 00 feet due to the 55 12 be w no l wil th dep , rd." , Boa winng bd y| the Planni egeved upon as desirable for Bids" the forms “Advance Notice 2 tt for the four izes construction. them until DMA author tt ys more or less has: received Newman notes that ALGO a but is holding eep holes from H & N Foe erenaney Caren eet Am ey oe notes 67, is the same subject and -82 #36 x Ai 59 ly Ju 16 update of this memo on

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