No proof that N. Korea Miniaturized nuclear Warheads

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The United States on Wednesday dismissed a claim by North Korea to have developed the ability to miniaturize nuclear warheads, but voiced concern Pyongyang was developing long-range missiles.

The u.s assessment is that North Korea’s doesn’t have that capacity to miniaturize weapons, a National Security Council (NSC) spokesman, Patrick Ventrell, was quoted on Defense News .

North Korea ramped up its nuclear threats on Wednesday, boasting it had mastered the ability to deliver miniaturized warheads on high-precision long-range rockets.

Reducing the size of a nuclear warhead to the point where it can fit on a long-range missile would be a major leap forward in offensive capability, and Pyongyang has claimed progress with miniaturization before.

Pyongyang’s claim came only days after a visit by top US diplomat John Kerry to Seoul when in a stinging assessment he slammed Kim Jong-Un’s “egregious” leadership and “grotesque” executions and warned of possible new sanctions.

The North on Wednesday denounced what it called Kerry’s “reckless” remarks and cancelled an invitation to UN Secretary General Ban Ki-Moon to visit a joint industrial zone on its side of the border with South Korea.