North Korea Nuclear Stockpile

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  North Korea, China, Russia Expanding Nuclear Weapons At Breakneck Pace: US

  North Korea, China and Russia are expanding and diversifying their nuclear weapons stockpiles at a "breakneck" speed, a White House official has said.

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  North Korea Slams Global Nuclear Watchdog As "Marionette" Of West

  North Korea has accused the UN agency responsible for regulating atomic energy of being a puppet of hostile countries after a new report said the isolated nation's nuclear weapons stockpile was breaking international law.

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  N Korea Will Not Fully Surrender Its Nuclear Stockpile? US Cites Evidence

  U.S. intelligence officials, citing newly obtained evidence, have concluded that North Korea does not intend to fully surrender its nuclear stockpile, and instead is considering ways to conceal the number of weapons it has and secret production facilities, according to U.S. officials.

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  With An Eye On Russia, US To Increase Nuclear Capabilities

  Concerned about Russia's growing tactical nuclear weapons, the United States will expand its nuclear capabilities, a policy document released on Friday said, a move some critics say could increase the risk of miscalculation between the two countries.

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  North Korea May Have More Nuclear Bomb Material Than Thought: Report

  Thermal images of North Korea's main nuclear site show Pyongyang may have reprocessed more plutonium than previously thought that can be used to enlarge its nuclear weapons stockpile, a U.S. think tank said on Friday.

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  North Korea Has Large Chemical Weapons Stockpile: Seoul

  North Korea has up to 5,000 tonnes of chemical weapons, South Korean experts said Friday, including the toxin used to assassinate its leader's half-brother.

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  North Korea Will Have Material For 20 Nuclear Bombs By Year End: Experts

  North Korea will have enough material for about 20 nuclear bombs by the end of this year, with ramped-up uranium enrichment facilities and an existing stockpile of plutonium, according to new assessments by weapons experts.

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  North Korea May Have 21 Nukes Or More: US Think Tank

  North Korea may have produced an additional six or more nuclear weapons over the past 18 months, possibly bringing its total arsenal to more than 21 bombs, a US think tank said Tuesday.

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  North Korea May Be 'Significantly' Upping Nuclear Bomb Output: Report

  North Korea may be significantly expanding its nuclear weapons production and could have added six or more weapons to its stockpile in the last 18 months, a US research institute said on Tuesday.

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  Satellite Images Suggest North Korea Expanding Uranium Capacity: Report

  North Korea appears to be expanding its capacity to produce uranium, which could be used to increase its stockpile of nuclear weapons, a U.S. nuclear expert said on Wednesday.

• North Korea Renews Threat of Nuclear Test

  North Korea renewed a threat on Saturday to conduct a nuclear test amid heightened concern that the reclusive state with a stockpile of missiles may set off an atomic device for the fourth time on the path to building a nuclear arsenal.

• Russia warns of 'catastrophe' if North Korea restarts reactor

  Russia today warned of a potential "man-made catastrophe" if North Korea restarts an ageing plutonium reactor to boost its stockpile of nuclear weapons, after US experts spotted steam rising from the Yongbyon facility.