Would be a shame to have to kill all the people who live in the north just to exterminate one schmuck. Would end up killing all the political prisoners and many relatives of relatives in Seoul. Many are nice people you would love to have as friends who can cook really good Seoul food. Why not engineer a coup like the one that killed Diem and Nhu in Vietnam. This would drive flat top nuts, and he would go berserk killing all his relatives, generals, and friends. Then they realize they will have to kill him to save themselves. Un's death will come with handsome financial rewards to buy all the kalbi meat in all of Koreas. Is there still some leftover poison from the Malaysia assassination? Just asking.