Quote Originally Posted by tequila View Post
If a terrorist got ahold of a working nuclear weapon, I doubt our biggest concern would be an orbital detonation to destroy our satellite network. I'd be more concerned about them parking it in downtown DC.

How are terrorists getting into orbit, anyway?
I think the concern is countries like Iran getting their hands on powerful enough lasers to dazzle satellites. It should be doable for any country with multi-megawatt power generation. Jamming GPS signals is, of course, far more academic, but susceptible to anti-radiation attacks. Peters' network security objection is a bit stronger, assuming that battlefield networks at some point(s) connect up with DoD VPNs.