What's the problem with north korea.... 10 points....... Nobody has answered?

I don't get it why is it a problem for north korea to have nuclear weapons the more we try to control N.Korea the more they keep threatning to use them, Can't we leave them alone. I know all about the missle tests but they were trying to test missles that's all. I can see why iran shouldn't have... show more I don't get it why is it a problem for north korea to have nuclear weapons the more we try to control N.Korea the more they keep threatning to use them, Can't we leave them alone. I know all about the missle tests but they were trying to test missles that's all. I can see why iran shouldn't have nuclear weapons because they want israel off the face of the earth, but why north korea.
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