Remote U.S. base on high-alert for potential North Korean nuclear attack


The White House believes the North Korea summit may lead North Korea to denuclearize, but quietly, Alaska’s Fort Greely is armed and ready to intercept and destroy a hostile thermonuclear warhead -- the last defense against a North Korean ICBM attack on the U.S.

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Lester Holt
Award-winning journalist and anchor of "NBC Nightly News” and “Dateline NBC.”

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