[hirenj]

Yeah, I kind of agree on this.

That said, the guy is a mechanical engineer at ANL, so I wouldn't take it as a sanctioned response from ANL. Claiming that the other corn isn't used in food production is disingenuous by the guy, since it is being used, but just via animals.

If you look at the lab biofuels splash page (http://biofuels.es.anl.gov/), you'll see they're working on things like water, nutrients and algal biofuels to improve the process.

There's a lot of work going into making 2nd generation biofuels actually viable, using cellulosic biomass and crops that can grow on marginal land. People are even working on producing fuel molecules that aren't ethanol (e.g. butanol).

We have a saying at work: Ethanol is for drinking, not for driving.