i think that east and west coast are the most likely targets, the stuff in the middle and in the low population density regions are all going to be fine, whether it be from ICBMs or mobs of looters i'm preferring the idea of the mountains of the midwest USA because of the relative distance from the many common types of disaster that are likely to increase in frequency over the next few decades, and the fact that it's much easier to defend yourself where access to weapons isn't already nazi germany level controlled, like most of the rest of the english speaking world and europe and asia there is plenty of reasons to be concerned about human-created disasters as well, they tend to be a lot more lethal, but what the sun and earth and stars and things from space are gonna bring are probably going to be very big problems too plus, there is an outlier possibility, which i consider to be fairly significant actually, of an intervention from the people who left behind all those ridiculously well made things in egypt and built the original pyramids and sphinx that is perhaps "crazy talk" to some but the evidence of their existence and their continuing interaction with their retarded cousins still stuck here on this rock are pretty strong IMO