Step two: Wait until the power requirements for running a mining setup from a single family dwelling becomes next to impossible.
Step three: Mop up any remaining centralized mining facilities through either taking them over in the name of national security or bombing it into the stone age.
Step four: Profit.
I wouldn't doubt that the NSA already has this kind of scheme cooked up and ready to deploy.
Well, as far as power requirements go, they would have to push things beyond 400 amps (88,000 watss; 88KW) before things would affect me.
I kinda doubt that will happen but you do have an intersting hypothesis.
My $.02.
That's certinaly a lot of power you are using and not counting others who are mining with amazing machines it would take too much money to defeat Bitcoin this way.