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In this April 13, 2017, photo, Kim Yo Jong, right, sister of North Korean leader Kim Jong Un, is pictured during the official opening of the Ryomyong residential area, a collection of more than a dozen apartment buildings, in Pyongyang, North Korea. South Korea's Unification Ministry said North Korea informed Wednesday, Feb. 7, 2018, that Kim Yo Jong would be part of the high-level delegation coming to the South for the Pyeongchang Winter Olympics. (AP Photo/Wong Maye-E)
In this April 13, 2017, photo, Kim Yo Jong, right, sister of North Korean leader Kim Jong Un, is pictured during the official opening of the Ryomyong residential area, a collection of more than a dozen apartment buildings, in Pyongyang, North Korea. South Korea's Unification Ministry said North Korea informed Wednesday, Feb. 7, 2018, that Kim Yo Jong would be part of the high-level delegation coming to the South for the Pyeongchang Winter Olympics. (AP Photo/Wong Maye-E)

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    Kim Jong Un's sister going to the Olympics

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Kim Jong Un's sister going to the Olympics

Kim Jong Un is sending his younger sister, 30-year-old Kim Yo Jong, to South Korea for the Winter Olympics, the first time any member of the Kim dynasty has visited the country. CNN's Brain Todd reports.

Kim Jong Un's sister going to the Olympics

Kim Jong Un is sending his younger sister, 30-year-old Kim Yo Jong, to South Korea for the Winter Olympics, the first time any member of the Kim dynasty has visited the country. CNN's Brain Todd reports.