Jack, I should probably specified an Ethanol farmer, I live in the middle of a couple thousand acres of corn that is grown to feed dairy herds, I respect farmers because I see on a daily basis the hours and effort they put into their businesses. It is easily one of the hardest ways to make a living.
Working in the marine trades for the past 12 years, I have seen and had to deal with the results of ethanol in fuel. It's a shame that the damage I've seen usually has to be borne by the owner who purchased fuel in good faith that destroyed his boat. In some cases, owners have been successful in getting insurance to cover their loss, but not always, and even with insurance, all owners pay increased premiums to cover the damage done.
Ethanol may have been a good idea 20 years ago, but with modern drilling techniques and discoveries, the U.S. has actually become a net exporter of oil and oil products. In constant dollars, crude oil is cheaper now than in the 1960's. Without the subsidies, ethanol is actually more expensive than crude oil by a fair amount.