If the public and legislators come away saying, 'Oh, we can...

If the public and legislators come away saying, 'Oh, we can never get an answer from these scientists. It's useless to spend money testing diet' -- then a lot of damage will have been done. Nutrition is important. We've already learned a lot that offers people plenty of sound advice. But there is a lot more we can learn. We just have to approach it in a smarter way.