All very good points:

A nuclear war is the only circumstance that could destroy US civilisation. IF anyone does thinks they can simply go into the woods and become Daniel Boone they are going to find it's not as easy as they think. No one has ever even included a geiger counter in their kit list, so they are obviously not thinking it through. Knowing when you have to leave an area because it's too hot would be the first priority I'd think.

BUT this is NOT a survivalist site. As you summed up so well it's for those "wanting to be able to deal with unexpected situations".
I'm a backpacker. I read this site for tips on how to go safely into dangerous places. Most of the kits here talk about getting by for a few weeks at most. Being able to last till you are rescued afer getting lost, or camp out rather than stay in say post Katrina New Orleans sounds sensible enough. Where are the lists with geiger counters? They are not there because this site isn't for those people.

simon