This is quite relevant and fascinating thank you for posting it. Corn subsidies dramatically influence the markets for farmers. There is a documentary called "King Corn" that elaborates on this (I haven't seen it but read a review).
For anyone who is curious about why we are fat the answer appears to be fructose so corn syrup and sucrose is apparently 50% fructose so sugar makes us fat and helps us to get diabetes and liver damage which affects moods etc.

Quality food production translates to high brix high nutritionally dense whole foods. These foods don't rot in 2 days in the fridge. The great joy of growing your own food is the dramatic improvement in quality. My garlic is well so much better than any of the stuff at the supermarket that many people are surprised. But then we've been trained to think that junk is normal.