I have no doubt this is what they want to do, but with so many weapons out there, I think they might try a major gun grab first.
They've been trying to disarm for decades. Following in the footsteps of their 1930's German counterparts. It's what National Socialists do.
Short of that, they'll be using Obamacare to exterminate those that disagree with them. Count on it.
They showed their hand when the IRS started going after those that politically disagreed with "der Fuhrer".