Los Alamos to Remove Weapons-Grade Nukes
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Los Alamos National Laboratory plans within a year to remove all weapons-grade nuclear material from a part of the lab that has raised security concerns, according to an internal federal document.
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North Korea has agreed to declare and disable all its nuclear facilities by the end of this year, the chief U.S. negotiator said Sunday.
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Researchers at a Department of Energy lab are developing fuel rods that could halve the amount of nuclear waste produced. That's good news for Yucca Mountain, Nevada, where 40 years' worth of radioactive material is slated to be stored. By John Gartner.
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ISLAMABAD, Pakistan -- Satellite images show that Pakistan is building a nuclear reactor that can produce weapons-grade plutonium, an American watchdog group said yesterday, warning that it could contribute to an atomic arms race with archrival India.
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On Amchitka Island, former site of nuclear-weapons testing, a federal monitoring program takes effect this week.
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A senior North Korean official says his   country plans to unload fuel rods from its nuclear reactor to   obtain more weapons-grade plutonium and put pressure on   Washington, a visiting U.S. scholar said on Saturday.
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Highlights of the U.S. program to reduce the threat of terrorists obtaining nuclear materials in Russia and at foreign research reactors.
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North Korea will soon start disabling its Soviet-era nuclear facility that makes arms-grade plutonium as called for in a deal the secretive state struck with regional powers, the South's foreign minister said on Wednesday.
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Russia will replace single nuclear warheads on some of its strategic missiles with multiple warheads, Russian news agencies reported Friday, allowing Moscow to modernize its nuclear arsenal while building fewer new missiles &#151; and spending less.
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In the latest dispute over possible contaminants from the Los Alamos National Laboratory, a Texas hydrologist says low concentrations of explosives and perchlorate suspected to be from the lab have reached the Rio Grande.
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The United States will address the threat posed by North Korea&#39;s missiles once the Stalinist state disbands its nuclear weapons program, a State Department official said Friday.
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PODOLSK, Russia, Aug. 29 -- Heavily guarded trucks rolled up to the Luch nuclear institute here on Tuesday night and unloaded five green reinforced containers holding a total of 21 pounds of uranium, about a third of it highly enriched, which had been quietly removed from a research reactor in...
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The top U.S. nuclear envoy, just back from a rare visit to North Korea, said on Friday Pyongyang was ready to disable its nuclear reactor in weeks and meet pledges it made in a disarmament deal.
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North Korea was poised to take its first step in nearly five years toward scaling back its nuclear weapons program with U.N. inspectors en route to the North Friday to monitor the shutdown of its sole operating atomic reactor.
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North Korea has reprocessed 8,000 spent fuel rods into weapons-grade plutonium and appears to have exported nuclear material to Libya, U.S. officials informed Asian allies this week.
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North Korea will soon start disabling its  Soviet-era nuclear facility that makes arms-grade plutonium as  called for in a deal the secretive state struck with regional  powers, the South's foreign minister said on Wednesday.
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The top U.S. nuclear envoy, just returned from a rare visit to North Korea, said on Friday Pyongyang was ready to promptly disable its nuclear reactor and live up to pledges it made in a February disarmament agreement.