I doubt that North Korea will ever succeed having missile hitting Hawaii. Because USA have best anti-missile defense. Remember that it would take 20 minutes or more for missile to get to Hawaii. USA have plenty of time to knock it down half of the time. If one missed, there' plenty more coming.
I'm sure that once N.K. succeed launch missile toward Hawaii, If USA destroy its missile, then it's gonna be real ugly. Who knows country around N.K. might change their mind and attack N.K. to put it to stop before it turn ugly.
It reminds me like a parable for example:
My friend asked me to take care of her cat so I took it in and let it roam around our house while I have cat of my own. My cat hiss and growl cuz she don't like cat company in our house. So my friend's cat went downstair to unfinished basement. It found a ceiling hole where the cement wall meet ceiling frame. It jumped into the hole and stayed in there. I looked for her cat and found it in the hole. While I tried to pull friend's hissing cat out of the hole, my cat attacked me by swatting it's paw on my ankle. I turned around and my cat hiss and growl at me trying to tell me "Leave my enemy alone!". My cat turned against me. I decided to move my cat out of basement and closed the door and I managed to get friend cat out of the hole and move it to other room with no holes to hide.
So given idea that two cats don't get along like enemy don't get along with other but if its enemy being attacked by other then it'll defend its enemy. Like USA don't always get along with China, Russia ect. Once N.K. attacks USA.. China and Russia can change mind and attack N.K. to leave USA alone. So N.K is in precarious situation. Why because If USA been attacked by N.K., N.K. can launch missile to China, Russia or any countries unexpectedly so they don't want that to happen. You know Kim Jong Il is a sicko dictator like Hitler.
Does that makes sense?
Catty