A tiny, but growing South Korean community is preparing in case of war with North Korea

Go Wan Hyuk showed "Nightline" a bunker designed to protect against "nuclear fallout and radiation" in case of disaster.
0:59 | 02/08/18

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Transcript for A tiny, but growing South Korean community is preparing in case of war with North Korea
So then yeah. Like you know. An apple. The visit pubs and redux. You're off. For me generating late night. I'm humbled me. And then punched me. All we know that it can to learn we're. William did you guys interviewing Tom could help. Little do you also has a firefighter even if anything less. From things like oh yeah. It was on those who.

This transcript has been automatically generated and may not be 100% accurate.

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