Another thing that gets the shorts of some of us on the right side of things all in a bunch is the dread EMP. Here's the [link to the] recent report of STRATFOR on the subject by Scott Stewart and Nate Huges.
[Hmmm, for some reason I'm unable to paste the article even though I'm allowed to reprint. Guess anyone who's interested will just have to go read the thing at their site so I'll double check the link.]
My only minor gripe with the article is that I'm not certain the US would or should treat (in terms of retaliation) an EMP attack as a conventional nukular attack.
Bottom line is that an EMP threat is pretty darned remote.