the simple fact is this.....the cost of the petroleum used to ship your food from the processor to your local grocery store contributes more to the cost of your food than the corn used to make the ethanol that replaces it.......
The simple fact is that until 1900 food cost one third of an average person's salary. Between 1900 and 2000 food costs diminished to 1 tenth of an average person's salary, due to agricultural improvements (industrial revolution). Since 2000, food was returned to 1/3 of an average persons salary. The major difference during that short period is the food for fuel program and world-wide starvation has skyrocketed.