How the U.S. Army counters North Korea threats

SEOUL, South Korea — While “CBS This Morning” co-host Norah O’Donnell and her team were in South Korea, the U.S. Army took CBS News on an aerial tour to give us a first-hand look at what they are doing to counter threats from North Korea.
We hitched a ride from Yongsan Army Garrison on a pair of Black Hawk helicopters for a bird’s-eye view of Seoul, one of the densest cities in the world that’s less than 40 miles from the North Korean border.
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