BBC Minute: On North Korea's Kim Yo-jong

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The sister of North Korean leader Kim Jong-un is to attend Friday's opening ceremony of the Winter Olympic Games in neighbouring South Korea. Kim Yo-jong will be the first immediate Kim family member to cross the border, with some seeing her visit as the latest sign of a thawing of relations between the two Koreas. So who is she - and how significant is her visit? BBC Minute’s Sophie - who is in South Korea’s capital Seoul - gave us an update. (Picture: North Korean leader Kim Jong-un tours a military unit with his younger sister, Kim Yo-jong. Credit: EPA/KCNA)