To begin with, I see this as unlikely but within the realm of possibility.
In a better world, I'm for open borders - no borders really - but certainly not one world government controlled/run/acting as corporations. I suppose I'll be long dead before any of this might occur - at least I would hope to be if worse comes to worse.
For now, I believe my best option might be living off the grid as an expatriot - ignoring the war, the poverty, and the bull associated with a modern american society and the baggage of our leaders and our political system. I'd like to stick around until the death of my parents and the death of my SO's mother so as not to cause them any undue pain worrying about their children but I'm pretty fed up with the hatred, the injustice, and the greed - all in the name of corporate profits.
The "liberal" host of Hardball, Chris Matthews, was arguing for a national ID card just a couple of nights ago. Maybe it's closer than we think.