12, The Commission has made public all the pertinent information which it had collected on this subject, with due regard to national The National Academy of Sciences, the Nation's foremost security, independent scientific body, engaged in an independent study of the biological effects of atomic~radiation, conducted by approximately 150 of the most distinguished authorities in their several fields. The results were publicly reported in June, 1956. 13, The report states that, except for accidents, the biological damage from peacetime activities, which include the testing of atomic weapons, has been "essentially negligible." For a fuller statement of the radiation exposure from all weapons tests to date and from future tests continued at the past testing rate, the entire report of the National 14, As regards fallout of strontium 90 from weapons testing, Dr. pen Willard F, Libby of the Atomic Energy Commission has stated that ‘om at a the present rate of testing, if continued indefinitely, would not produce a dangerous level of concentration of strontium 90 in the human body. Dr. Shields Warren, eminent radiologist, has stated that bone . deposition of strontium 90 is well below the natural background level of radiation, and that to cause harmful effects the dose would have to be increased many times, 15. Mention might be made at this point of various speculations concerning the effect of atomic explosions upon the weather. The National Academy of Sciences also established a Committee on Meteorology which gave attention to this question and which concluded that there was no evidence to indicate that climate has been in any way altered by past atomic and thermonuclear explosions, 16, The Atomic Energy Commission has made extensive reports on the subject of 'fallout", including the most authoritative scientific data, in testimony before various committees of the Congress. REPRODUCED AT TRE DWIGHT D. EISENHOWER LIBRARY 17, On the initiative of the United States, an international study of the subject was undertaken under the auspices of the United Nations. This study is now in progress. Ill. THE LONG-RANGE DETECTION OF THE DETONATION OF NUCLEAR WEAPONS.. 18, A system for monitoring the occurrence of an explosion, attributable to an atomic source, was initiated by the Governmentin sufficient time to detect a Soviet nuclear explosion which occurred on the 29th of August, 1949, and which was announced by the President on September 23rd of that year. 19, Including that test and since that date, the organization concerned with this responsibility has detected 7 series of weapons tests within Soviet territory. These series have been announced by our Government as they occurred and were detected. Particular detonations which presented any unusual characteristics have been specifically identified at the time of detection, more Sa t ayHOWE Academy of Sciences should be examined. | . : -y

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