Kim Jong Un fired several senior officials who failed to enforce North Korea’s stringent Covid-19 prevention, a dereliction of duty which the young dictator said will have “grave consequences” for the impoverished and isolated nation, state media reported Wednesday.Kim Jong Un fired several senior officials who failed to enforce North Korea’s stringent Covid-19 prevention, a dereliction of duty which the young dictator said will have “grave consequences” for the impoverished and isolated nation, state media reported Wednesday.