"Another message of the plot deals with the backstory of the post-apocalyptic world: specifically, that it was not the electronics-destroying electromagnetic pulses, nor the destruction of major cities, nor the release of various bio-engineered plagues that actually destroyed society: rather, it was the hypersurvivalists themselves, those who maintained stockpiles of weapons and ammunition and who preyed on humanitarian workers and other forces of order."
Interesting group to blame.
I never even heard of the movie (but that's not too surprising as I don't even watch much TV).