The world is approaching North Korea the wrong way. China is one of the few countries to have good relations with North Korea and also one of the few to have trade with them. To solve the North Korea problem once and for all requires opening up trade with North Korea even only in the form of them selling goods here. Countries don't attack trading partners because the People in those countries have a vested interest in continuing to sell to People in the would-be-attacked country. Free trade stops wars. It lowers costs and raises income of the poorer countries and the buying power of the richer ones. We went thru this process with China and today China is no threat to the United States nor vice versa. The same principles can and will work with North Korea.