I understand that you are talking about the internet itself. How would they implement a kill switch? A true kill switch in my opinion would be to physically destroy all of the hardware. And I don't see that happening without of sort of huge magnetic pulse, and that would destroy everything else as well. Shy of that we as a people are resourceful enough that it would come back up as most likely a different network. And if it's a true free market that rebuilds it, it will end up being a better network structure. That is where we were heading before Al Gore forced the "internet" down our throats.