We started watching the documentary "King Corn" which looks at the role of corn in our diet and the complexities of the modern U.S. agricultural system.
For much more info, follow the link I have provided and click on the "Corn" tab at the top of the page. It provides VERY GOOD background info.
For much more info, follow the link I have provided and click on the "Corn" tab at the top of the page. It provides VERY GOOD background info.