ACCESSION NUMBER:00000 FILE ID:95081110.POL DATE:08/11/95 TITLE:SAFE, RELIABLE NUCLEAR STOCKPILE IS U.S. GOAL, PERRY SAYS TEXT: (Holum says Clinton decision will aid CTBT talks) (730) By Jacquelyn S. Porth USIA Security Affairs Correspondent Washington -- "A safe, reliable nuclear stockpile is in the supreme national interest of the United States," Defense Secretary Perry said August 11 following President Clinton's decision not to test any nuclear weapons again, not even those of the lowest yield. Perry stressed that he remains responsible for maintaining a credible nuclear deterrent force into the future as well as retaining a safe and reliable nuclear stockpile after a Comprehensive Test Ban Treaty (CTBT) is concluded. Negotiators are hoping to conclude a CTBT in 1996. The secretary noted that the president could change his position if the secretaries of Defense and Energy "determined that there was a (nuclear weapons) reliability problem that could not be addressed" through the Science-Based Stockpile Stewardship (SBSS) program. SBSS is the principal feature of the U.S. nuclear safeguards program, according to Perry, but new verification techniques will also be important. Most importantly, he said, a system will be created to identify a major nuclear weapons system failure should it occur. The secretary said the Joint Chiefs of Staff, the nation's top military leaders, agree with him that "the SBSS system with safeguards" will protect the existing U.S. nuclear stockpile sufficiently. The United States is not developing any new nuclear weapons. The president could make a decision "to return to tests," Perry said, if both Perry and Energy Secretary O'Leary determine that there is "a reliability problem" that cannot be addressed "through the SBSS program alone." Meanwhile, Director John Holum of the U.S. Arms Control and Disarmament Agency (ACDA) said the president's decision "will help resolve by far the toughest nut" in the CTBT negotiations in Geneva. The zero yield decision, he said, "makes the test ban negotiable, because it treats all countries the same." Perry laid out the four options he considered before making his recommendation to the president last week: -- a zero yield option supplemented by the SBSS; -- a micro yield option including some minor hydronuclear testing; -- a low yield option testing up to about one kiloton of explosives; and -- a full yield option. He said he reached his decision following consultations with the Joint Chiefs of Staff, the Department of Energy, civilian scientists, government nuclear laboratories and intelligence experts. Based on those contacts, the secretary decided that the low yield option would have limited value if exercised and would not be necessary in order to monitor the safety and reliability of the shrinking U.S. nuclear weapons stockpile. Perry said he selected the SBSS model, which uses computer modeling and new experimental facilities, because he felt it "would be adequate for most contingencies." The reliability, and not the safety, of aging nuclear weapons was the paramount concern, he explained. In response to questions from reporters following Perry's remarks, Assistant Secretary of Defense for International Security Policy Ashton Carter said "some components" of the nuclear weapons test site in Nevada will be kept in a state of readiness so that nuclear tests can be reactivated "within a short period of time" if the president decides it is necessary "or if, for some other reason, the (test ban) treaty were not adhered to or signed by other partners and testing needed to be resumed." Carter said U.S. allies, including the French, have been informed about the U.S. testing decision. The United States has "shared its thinking" on how best to conduct SBSS activities and how to "retain safe and reliable arsenals," he said, as other allies conduct their own deliberations on the testing debate. Jan Lodal, principal deputy undersecretary of defense for policy, who joined Perry and Carter at the Pentagon briefing, stressed the importance "of thorough consultation and explanation of how we came to our conclusion (in order) to try to bring the other parties around to this." Carter said the United States has been consulting with British officials on the nuclear testing issue. "The British government has not announced a decision" on this, he said. The nuclear weapons safeguards program provides the confidence needed for the United States "to walk down this path," Carter added. He said the United States hopes all nuclear and non-nuclear weapons states will join in signing a CTBT. NNNN