The bit that struck me was something the "con" guest said. He said that over a lifetime, fat people and smokers have some of the lowest healthcare costs - because they die earlier! Dead people can't get dimensia/Alzheimers.
How's that for cynical arguments?
I do wonder if it is true.
Personally, I don't like the idea of taxing regular food, seems against a free society. Educating and offering comparatively priced healthy foods is a better idea.
