The Extraordinary Science of Addictive Junk Food - NYTimes.com

“As a culture, we’ve become upset by the tobacco companies advertising to children, but we sit idly by while the food companies do the very same thing. And we could make a claim that the toll taken on the public health by a poor diet rivals that taken by tobacco.”
This a very long article, but check out at least the first 2 pages, interesting stuff!