Plain and simple one can not tax people for being over weight. Dumbest idea i have heard of in a very long time. And in closing lets tax shinny people too since the ones i see constantly have colds, running noses, and a variety of maladies that never seem to go away.
The health care industry should work like the free market. A teenage driver pays many times more in car insurance premiums than a 40 or 50 year old mother because he is more likely to get in accidents. No one argues this is unfair; why should the responsible subsidize the irresponsible any more than is absolutely necessary for society to function?
With mandatory health care and ever-increasing medical entitlements, my bad choices now get added to the national debt. The free market has been taken completely out of the equation. Short of repealing these entitlements (which I don't see Congress *ever* having the political will to do because they are cowards), the only way to keep from destroying the currency and bankrupting the nation is to mimic the free market by creating a system where everyone has to effectively pay for his or her choices.
If I cost the "system" 3x as much as average (which is really you, your family, and your children because there is no "system", only future taxes), I should have to pay for it out of my own pocket. To expect you to cover it is socialism. That is the definition of the word. Unless entitlement spending is repealed, the only way to do that is to charge on a per-person basis for services used. It is an imperfect solution but better than the alternative of printing money until it is worthless. (If you can figure out how to repeal the entitlements, then all of this is a moot point.)