I've read about economic collapse, nuclear attack, zombies, etc., but I haven't seen anything about an EMP attack, which is probably worse than anything short of a major nuclear exchange. A single nuclear device exploded high in the atmosphere over the central U.S. would knock out all electrical power (and not for a brief period), all post-1980 vehicles, including farm equiptment, trains, planes, and communications of all sorts. If you're in a city of any size, food is completely gone after a few weeks, or a few months out in the country. No medicine for the seiously ill. No help at all if you're not near the coastal area, and then not quickly. Bands of "new barbarians" after a very short time. One medium nuclear device that could be mounted on an advanced Scud, launched in the Gulf of Mexico from a container ship, detonated over the mid-west, and we're in the sh***er.
"One Second After," by William Forstchen, describes a very probable senario. He's a professor of military history and technology history. A study was commissoned by the government, and presented the very same day that the 9-11 report was submitted. The EMP study was, of course, backtracked. The study, by "The Commission to Assess the Threat to the United States from Electromagnetic Pulse Attack," was critized by the left as some sort of scare tactic, but was comprised of noted scientists.
There's actually a fair amount of information on the internet, if you're willing to read about. bleepned scary.
