For our part, we're in the business of providing farmers with the best tools to be as innovative as possible and get the best value. With respect to biofuels, we are developing crop varieties that have the best critical mass for biofuels. Also, we are developing crops that are high yield. So you're getting more yield per acre, and that helps as well in terms of addressing both food and fuel and the competing interests.
For the longer term, I can't really say whether ethanol from corn is going to be the long-term solution. I would leave that to others to comment on, but I would say that the technology, as I understand it right now, is not mature to take other feedstocks. That is why corn is the preferred feedstock, and soybeans and canola for biodiesel.