Well, there's two ways they can go on this:
1) Forget that stuff about smoking. It's basically not that dangerous. Second-hand smoke especially. Feel free to indulge.
2) You must exercise! People who do not exercise will be taxed! Neighbors must report neighbors who do not exercise sufficiently! There will be no exceptions!
Mmmmmmm. Wonder which way it's gonna go...
I would say that the "Department of Homeland Security" will pick #2.