More things to worry about: the "E-bomb"
I had heard of the Electromagnetic Pulse effect that military planners say could knock out electrical and telecommunication systems by use of an atomic bomb, but I didn't know the effect could be achieved with conventional weapons:
E-BOMB
"In the blink of an eye, electromagnetic bombs could throw civilization back 200 years. And terrorists can build them for $400."
http://popularmechanics.com/science/military/2001/9/e-bomb/print.phtml
Bob Clark