In spite of all of their vitriolic sabre-rattling, I don't think NK is much of a direct threat.
The trouble is that they are prepared to share their missile & nuclear weapon technology with other slightly-less basket-case countries (Iran, Pakistan, Cuba, Libya, Syria & Yemen:
https://en.wikipedia.org/wiki/North_...xport_partners
But when we are talking about the likes of ISIS/ISIL/IS (or whatever they are called this week), even Al Qaeda, the Taliban, Al Shabaab, Boko Haram etc, these groups don't really have a 'country' to protect, just a crazed ideology they want to impose on the whole world.
If any of that mob get their hands on a nuke (even if only an inferior, low-yield NK one), the world will get a shock much greater than we experienced on September 11, 2001.
Because if they detonate one, we cannot know if they have more or where the next 'Bucket of Sunshine' will go off.
And they know it.
The ultimate in Global terrorism.
I'm glad I'm not a parent...
Dean
Dean