North Korea is a Stalinist gulag that functions like a medieval hermit kingdom. The DPRK is significant only because it has nuclear weapons, and survives only with Chinese assistance. The DPRK is dependent on China and China is dependent on the US. Leave the DPRK alone and they will implode eventually. Lift the sanctions and they will simply become China-lite, i.e. a source of serf labor for US corporations. Nothing to worry about.