But if we are to succeed, we should understand: The campaign against obesity will have to look a lot less like the campaign against smoking (which involves just one decision, to smoke or not to smoke) and much more like the generation-long campaign against highway fatalities, which required the redesign of cars, the redesign of highways, and changes in personal behavior like seat-belt use and drunk driving.

CNN: Why we're getting fatter -- and what to do about it