As far as this whole situation goes, these are my thoughts.

1. These reports that we're hearing regarding the capabilities of North Korea...  I'm not sure I buy it completely.  That kind of information is not and should not be public information.  I kind of think that it's more "speculation" than anything else.  I also think that at least a part of it is media hype.  Don't get me wrong, I do think that NK is more advanced technologically than most people think, but I have my doubts about just how far advanced they really are.
   
   
2. The solution to the problem is to put them on notice not only by words and sanctions, but also via actions.  Perhaps conduct a "test" of missile launch capability from a sub right off the coast of NK in international waters.  Conduct joint "exorcises" with other country's navy's and a carrier battle group in international waters in the East China Sea or perhaps the Sea of Japan.
   
   
   
3. The overflight by U.S. military bombers across the Korean peninsula is also a way to show "strength of force".  Perhaps increase the frequency of these with little effort to hide it.
   

In other words, just display a "show of force" and power as a warning.

The thing is, most people don't realize that NK uses propaganda on their own people to "keep them in check".  It has worked very well for a number of years, but with today's technology some of the people of North Korea know better.  Their military, while strong in numbers is armed with out-dated and obsolete equipment and weaponry.  Most of what comes out of North Korea is propaganda.  they might say that they have "so-and-so" capability and might threaten certain areas (in this case Guam), but that doesn't mean that it's true.

The last thing that we want to do is get into a war with them.  While yes, the U.S. and NATO Allies have superior capabilities, going into a war like that would draw in other countries like China and Russia.  A war would absolutely result in vast human casualties and destruction... even if we're talking conventional weapons only.

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