Maybe just to break some tension.
https://www.google.com/amp/s/www.theodysseyonline.com/texas-state-students-guide-zombie-apocalypse.amp
I first heard of it well before 2015.
If it’s all out nuclear war, we are toast. But one bomb? There was plenty of devastation at Hiroshima, but a remarkable number of people survived despite fairly close to the blast zone. We were in Germany for Chernobyl. My husband’s first thought was “The Geiger Counters are all broken” when he saw people out in the parking lot with the things registering levels that would require a clean up in the lab. He called me and told me to close the windows. Luckily for us a large part of the radiation was radioactive iodine which has a fairly short half life. We drank ultra-pasteurized milk for the next six months and made our own yogurt from it. Some things were contaminated with Cesium (mushrooms and game) we didn’t eat them for the rest of our stay in Germany. https://www.popsci.com/article/science/german-boars-are-too-radioactive-eat
I don’t think there’s anywhere to flee to. We’d hunker in place and hope for the best.
@mathmom , I was also in Germany during Chernobyl. I’ve wondered on occasion if we (my then-spouse and I) could have been affected.
I’ll always wonder - we were there for three more years. However I think my childhood getting sunburned in Africa was probably more damaging in the long run. 
Unfortunately, this was a serious announcement, and these are serious times.
Indeed.
Also, considering the demonstrated proficiency of NK missile accuracy and quality control*, I’d also add Mainland China and Russia to the list.
- NK missiles have had an interesting tendency to fall apart/explode not too long after launch.
Iowa might be safe - no big military installations there that I can think of. Nebraska, Kansas and Oklahoma would be hit for sure.
Iowa has many server farms I believe- there goes the internet…