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Disarmament DiplomacyIssue No. 15, May 1997Prominent Physicist Urges US Ban on New Nuclear WeaponsOn 25 April, a prominent US nuclear physicist, Hans Bethe - a senior member of the US World War II Manhattan Project - wrote to President Clinton urging his administration to definitively rule out research and development into new nuclear weapons or other, known or potential, weapons of mass destruction. The letter was released to the media by the Federation of American Scientists (FAS) on 15 May. FAS President Jeremy J. Stone called the letter "twice historic": both "a reverse replay of the famous episode in which Albert Einstein wrote President Roosevelt about the possibility of an atomic weapon" and "a highly unusual call on government not to fund even creative thought for what amounts to new categories of weapons of mass destruction."Substantial extracts from Hans Bethe's letter follow. "It seems that the time has come for our nation to declare that it is not working, in any way, to develop further weapons of mass destruction of any kind. In particular, this means not financing work looking toward the possibility of new designs for nuclear weapons. And it certainly means not working on new types of nuclear weapons, such as pure-fission weapons. The United States already possesses a very wide range of different designs of nuclear weapons and needs no more. Further, it is our own splendid weapons laboratories that are, by far and without any question, the most likely to succeed in such nuclear inventions. Since any types of new weapons would, in time, spread to others and present a threat to us, it is logical for us not to pioneer further in this field. In some cases, such as pure-fission weapons, success is unlikely. But even reports of our seeking to invent them could be, from a political point of view, very damaging to our national image and to our effort to maintain a world-wide campaign for nuclear disarmament. Do you, for example, want scientists in laboratories under your administration trying to invent nuclear weapons so efficient, compared to conventional weapons, that someday, if an unlikely success were achieved, they would be a new option for terrorists. This matter is sure to be raised in conjunction with the Senate's review of the Comprehensive Test Ban Treaty, because that Treaty raises the question of what experiments are...permitted. In my judgment, the time has come to cease all physical experiments, no matter how small their yield, whose primary purpose is to design new types of nuclear weapons, as opposed to developing peaceful uses of nuclear energy. Indeed...I would not fund computational experiments, or even creative thought designed to produce new categories of nuclear weapons. ... In effect, the President..., the laboratory directors and the atomic scientists in the laboratories should all adopt the stance of the 'Atomic Scientists' Appeal to Colleagues,' which was promulgated two years ago, to 'cease and desist from work creating, developing, improving and manufacturing further nuclear weapons - and, for that matter, other weapons of potential mass destruction such as chemical and biological weapons.' I fully support the Science-based Stockpile Stewardship program, which ensures that the existing nuclear weapons remain fully operative. This is a challenging program to fulfill in the absence of nuclear tests. But neither it nor any of the other Comprehensive Test ban Treaty Safeguards require the laboratories to engage in creative work or physical or computational experiments on the design of new types of nuclear weapons, and they should not do so. ...the basic capability to resume nuclear test activities can and will be maintained...without attempting to design new types of nuclear weapons. And even if the Department of Energy is charged to 'maintain capability to design, fabricate and certify new warheads' - which I do not believe is necessary - this would also not require or justify research into new types of nuclear weapons. The underlying purpose of a complete cessation of nuclear testing...is to prevent new nuclear weapons from emerging... It is in our national and global interest to stand true to this underlying purpose. Accordingly, I hope that you will review this matter personally to satisfy yourself that no nuclear weapons design work is being done, under the cover of your Safeguards or other policies, that you would not certify as absolutely required. Perhaps, in conjunction with the Comprehensive Nuclear Test Ban Treaty hearings in the Senate, you might consider making a suitable pronouncement along these lines, to discipline the bureaucracy, and to reassure the world that America is vigilant in its desire to ensure that new kinds of nuclear weapons are not created." Report: Atomic scientists call for halt to research on new types of nuclear weapon, US Newswire, 15 May. © 1998 The Acronym Institute. |