Staying safe from fallout is about keeping radioactive dust/ash off of you which can, for the most part, simply be brushed or washed off, it's not about radiation itself which you cannot get away from. The whole idea is to minimize the amount of radiation absorbed by ensuring that you are not covered in radioactive materials.
Think about the fact that "the stupidity of our politicians" have kept us out of nuclear war for almost 80 years (since 1945), there has been no major or widespread biological events in our country (Google biological terrorist attacks), and most chemical spills have been relatively minor. An asteroid as it 'comes out of the sun' not being spotted because of the intense sunlight has nothing to do with stupidity, politicians, or a 'new breed' of scientists. Compared to many other countries in this world we in the United States thankfully live a safely sheltered and mundane existence.
Just a little hint that may help you, my friend. Bodies stacked like cordwood outside of someones house after a major 'event' probably means that this is not a good place to try and steal supplies - just sayin'
OK, my friend, lol So serious
A good prepper should have enough security and privacy to not draw attention. And if they do at least bury the bodies. Diseases start with dead bodies left out in the sun.
There is actually a group of "Werewolf" preppers in Oklahoma. They have more money than brains but they do pay for some pretty good(on paper anyway) training. Had the displeasure of meeting one of their " Commanding officers". They claim to follow Bushido but they also plan on raiding people for supplies.
Always happy to spare a few rounds to those who come calling uninvited.
Lol
