So, if health insurers want to start charging premiums I suggest they send their bills to Superfund sites first, then to regular toxic cities like Flint, Camden, Hinkley or Picher, then to producers of known-carcinogenic substances (like Chrome-6 or Roundup), and then to advertisers of known-harmful products like alcohol or tobacco. Only when they run out of those targets can we have a discussion on individual lifestyle choices.