Kim Jong Un calls for exponential increase in North Korea’s nuclear arsenal amid threats from South, US

North Korean leader Kim Jong Un is calling for an “exponential increase” in his country’s nuclear weapons arsenal as threats from South Korea and the Untied States increase, Pyongyang’s state media reported Sunday.North Korean leader Kim Jong Un is calling for an “exponential increase” in his country’s nuclear weapons arsenal as threats from South Korea and the Untied States increase, Pyongyang’s state media reported Sunday.