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The Boston Globe

World

President Obama doubts North Korea ability

Does not believe it can put nuclear device on missile

WASHINGTON — President Obama said in an interview broadcast Tuesday he did not believe that North Korea yet had the ability to miniaturize a nuclear weapon to fit atop a missile, and he said nothing would shake him from a strategy of refusing to ‘‘reward’’ the kind of provocative behavior exhibited by Kim Jong Un, the North’s leader.

Obama, speaking in an interview with Savannah Guthrie of NBC News that was recorded just before the bombings in Boston on Monday, implicitly dismissed a conclusion by the Defense Intelligence Agency, which said in a report last month that it had ‘‘moderate confidence’’ that the North already had mastered the technology of building a weapon that could fit into a missile warhead.

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