I'm sympathetic to the argument that taxing "bad" food is too blunt an instrument to use in the war against obesity (food isn't like cigarettes, because we don't need tobacco to live, etc...). But let's be clear: the federal government already has a tax policy affecting what we eat, and it dramatically distorts the price of our food ... and the size of our waists.
Colorado is now well into its first year as the first state to legalize recreational marijuana. How's it going? James Hamblin visits Aspen.