While on the topic of Nazi Germany, this whole ICBM in NK thing reminds me of the history surrounding Hitler deploying troops in Rhineland. This and subsequent military pushes violated a neutral zone established after WWI, and no other countries reacted because at that time the public was adamantly anti-war because, again, of WWI. By the time any actual resistance was established against Germany's invasions, it was too late. I've heard historians identify the occupation of Rhineland as the last time at which Nazi Germany could have been contained without nearly as much loss of life.
I don't know all the complexities with NK politics today and their relationship with China, etc. So I hate to suggest this but with them having developed nukes and now testing ICBMs, it seems to me like today could be a modern-day parallel to that pre-WWII situation in some ways.
This is dangerous talk because it's such a vague analogy and makes more of an emotional issue out of this than anything else. I'm generally strongly in favor of talks and negotiations, but I'm a little worried that in some situations there is a clock ticking and negotiations have a time limit.