North Korea H-bomb claim: Expert in Colorado knows what it’s like to deal with regime
DENVER -- Skepticism abounds after North Korea boasted about the "spectacular success" of its first-ever hydrogen bomb test. While the U.S. doesn't think so, some experts say it's possible the rogue nation conducted a significant nuclear test that didn't involve an H-bomb. A hydrogen bomb is hundreds of times more powerful than an atomic bomb.
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