That was a bit tongue-in-cheek. Obviously the administrations there and here are both a bit...over the top. But I don't think DPRK is suicidal. They work hard to appear crazy but I don't think they are. They're smart enough to know that using a nuke against the US or a close ally would mean their utter and complete destruction. Nukes are powerful tools to have in the tool box but they're nearly impossible to actually use. Granted, few weapons in history have ever been fielded and not used and things could change but I don't expect a nuclear exchange between the US and North Korea.

As far as stocking radiation meds, etc I really don't think there's much concern where I live. If the unthinkable happened and there was an exchange I don't think anything DPRK has can reach over the Rockies. Obviously it would still be disastrous to the world but not a radiological risk.