The lesson should be it doesn't matter what happens to the U.S. All they care about is that @#%ty little country so the bogeyman is Iran, a country without nuclear fuel let alone a delivery system.
Iran and N. Korea are trading partners . Appears a delivery system may be on the way.
They have been the ones supplying Iran with yellow cake so they can enrich plutonium
N. Korea's whole economy is based on the manufacture of arms and selling to highest bidders.