Interesting interview of Paul Gigot of the Wall Street Journal talking about the belligerent N. Korea -

http://live.wsj.com/video/opinion-kim-jong-crazy/40E1B5B7-43B6-4679-84CD-A655F836F7C0.html?mod=WSJ_article_outbrain&obref=obnetwork#!40E1B5B7-43B6-4679-84CD-A655F836F7C0
  

This is an interesting interview of Paul Gigot of the Wall Street Journal, and points at the economic link between N and S Korea in the industrial zone in the DMZ - Gigot says that "if they do anything like that," it will be the end of their regime and he suggests regime change policies.