North Korea informed the South on Thursday that it will send a high-ranking delegation led by a top official handling inter-Korean affairs to the closing ceremony of the Pyeongchang Winter Olympics, in an apparent bid to improve relations with Seoul further.But criticism is likely to grow in South Korea, as Kim Yong Chol, the head of the North Korean ruling party's United Front Department, is believed to have planned the artillery attack on Yeonpyeong island in 2010 that killed two South Korean Marines and two civilians.The focus is also on whether Kim Yong Chol, a vice chairman of the Cent…READ FULL ARTICLE