http://www.alertnet.org/thenews/newsdesk/CHA335887.htmVIENNA, Oct 3 (Reuters) - The world's stockpiles of plutonium and highly enriched uranium useable in atomic weapons are growing, despite increasing fears about the security of nuclear materials, a U.S. based think-tank says in a new report.
The estimates of civilian and military stocks of plutonium and highly enriched uranium (HEU) -- information treated by most governments as classified -- were prepared by the Institute for Science and International Security (ISIS), run by former U.N. weapons inspector David Albright.
"At the end of 2003, there were more than 3,700 metric tons of plutonium and highly enriched uranium -- uranium enriched to 20 percent or uranium-235 -- enough for hundreds of thousands of nuclear weapons, in about 60 countries," Albright and Kimberly Kramer wrote in an article to be published in the next issue of the Bulletin of the Atomic Scientists.
Most of the weapons-useable material is in Russia, followed by the United States.
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