Obesity poised to overtake smoking as leading preventable cause of cancer

When posts mentioning obesity crop up on HN, some people advocate personal responsibility to prevent your own obesity (taking the individualistic position) and some people argue that it is a society-wide problem, where changes in our culture have caused this problem to expand over time (taking the social position).

The synthesis of these two ideas: It's easier to get fat than ever before, so you are even more responsible to avoid it than ever.