WRT corn derived ethanol, I think the economies of scale have been going
for a while. Archer Daniels Midland is just laughing all the way to the
bank with the taxpayer's money, with no net gain to the environment,
considering the amount of fossil fuels needed to produce and distill the
corn.

Your worried about ADM? How about Exxon Mobil laughing all the way to the
bank. And OPEC. And a assortment of dictatorial regimes propped up with
petrodollars.

Subsidizing? No fuel is subsidized more heavily that oil/gas. From
sweetheart deals for drilling leases, to special tax structures (Master
Limited Partnerships), to several Carrier task groups to protect the Persian
gulf waterways. How many trillions is the US spending on Iraq since 1991? No
Americans have died protecting corn fields. Don't forget the environmental
damage (EPA, DEC Superfund sites) to clean up oil spills all over the place.
How much does this cost?