North Korea's Latest Blast Hints at Thermonuclear Weapon

A definitive assessment is probably still weeks or even months away, but the size of the blast from North Korea's sixth and latest nuclear test suggests the weapon may be thermonuclear or use such fuel, analysts say.

North Korea's Latest Blast Hints at Thermonuclear Weapon

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North Korea and weapons of mass destruction - Wikipedia

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The forgotten nuclear threat of North Korea - New Statesman

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