Kim Jong Un expressed his interest in holding talks with the South in his New Year address. Pic/AFP

South Korea yesterday proposed holding high-level talks with Pyongyang on January 9, after the North's leader Kim Jong-Un called for a breakthrough in relations and said Pyongyang might attend the Winter Olympics. Kim used his annual New Year address to underscore Pyongyang's claim that it has developed a weapons deterrent and warn that he had a "nuclear button" on hand, but sweetened his remarks by expressing an interest in dialogue and participating in the South's Games.