North Korea: We possess nuclear weapons, but criticize South Korea's nuclear submarines

Claiming it is because they cannot reverse their status
North Korea: "Nuclear-armed status is irreversible"... Criticizes South Korea's push for nuclear submarines Daum | Asia Economy Kim Sun-kyung Kim Song-chol, Vice Foreign Minister of North Korea, repeatedly asserted at the UN General Assembly that North Korea's status as a nuclear-armed state is irreversible. While criticizing South Korea's pursuit of nuclear-powered submarines, he also called for reform, claiming the UN is being used for the hegemony strategies of certain nations. During his speech at the 81st UN General Assembly general debate held at the UN Headquarters in New York on the 28th (local time), Vice Minister Kim stated, "Nuclear deterrence is strictly against external aggression and threats...