Known Unknowns: The Dangers of North Korea's H-Bomb Threat

Scientific American:

Since North Korea’s foreign minister recently floated the idea that his country might test a hydrogen bomb in the Pacific Ocean, the North’s leader Kim Jong-un and U.S. Pres. Donald Trump have engaged in an escalating battle of name-calling and threats. As unsettling as the exchange has been, fortunately there has so far been no demonstration of thermonuclear weaponry. Many experts question whether Pyongyang actually has an H-bomb and the capability to accurately deliver it. But it is difficult to fully dismiss its sudden decision to ratchet up its rhetoric from nuclear to thermonuclear—and its suggestion that it would move its tests from underground bunkers to the open ocean.



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