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In this image made from video, North Korean figure skaters Ryom Tae-ok, center, and Kim Ju-sik, center left, are guarded as they leave Taipei Arena after a practice session in Taipei, Taiwan, Monday, Jan. 22, 2018. The North Korean figure skating pair, who will compete in the Winter Olympics in South Korea next month, are in Taiwan this week to take part in a competition. (TVBS via AP)

2013 world figure skating championships

The world's best skaters are in London, Ont., for the biggest event of the season.