Subject: headlines march 13 Date: Thu, 14 Mar 1996 07:51:04 -0500 March 13, 1996 (Reuter) - Dutch Prime Minister Wim Kok said that the Netherlands was prepared to act on Ukraine's behalf to ensure Western organisations made good on promises to help close the Chernobyl nuclear power station. Kok said that he was prepared to intercede with "real international bodies" committed to help close down the Chernobyl site. But he made clear his influence did not extend to G7 industrialised countries, which have promised the biggest package of credits and aid to shut down the stricken plant. March 13, 1996 (UPI) -- Scientists debunked claims that a nuclear explosion was possible in the proposed Yucca Mountain radioactive waste dump in Nevada. The Los Alamos National Laboratory gave the University of California $125,000 to put a team of independent scientists together and determine if such a threat was possible. "The crux of the matter is by the time you accumulate the necessary plutonium for an explosion -- about 550 pounds -- most of it has decayed," said William Kastenberg, project manager and professor and chair for nuclear engineering at University of California, Berkeley. "And uranium will be flushed out of the system into the groundwater without accumulating a critical mass.