[hogan646]

So basically, you'd have to blow the nuke up in the exosphere.......

That is correct. A high altitude nuclear burst is what creates the electro magnetic pulse which can damage circuitry.

 

[snowdog650]

So a nuke detonation at 300miles up could EMP the whole damn US. And solid-state electronics are most vulnerable. Guess what we use almost exclusively.

http://en.wikipedia.org/wiki/File:EMP_areas.JPG

Looks like I'm moving to Northeastern Maine. :thumb: