The only question I have about all of this is...who would want to live after we scorch the earth? You'll have the preppers and then you'll have the scrunges that somehow survive the (insert doomsday device of choice here) that are gonna be geared up with all kinds of modern weapons, full auto, grenade launchers, RPGs, you name it? So then you two have this running battle until one eliminates the other and then wait for the next foe in line?
I think I'd rather crack open that bottle of Jack I keep for a buddy, round up a good cigar and sit on my back deck and watch the mushroom clouds form.
Sarg