I'll follow up with a couple of short points.
We saw a tremendous run-up in prices about a year ago. In the last 24 months we've seen a huge price spike in grain. There will always be highs and lows in grain prices due to global weather. Maybe China will have a bad crop one year, or India or the U.S. will have a bad crop. Those supply-and-demand aspects will always result in small spikes in prices.
A couple of years ago when the biofuels were starting, we saw that it wasn't just the biofuels causing it. A lot of speculators and hedge funds got into the market and drove prices to the point that there was no economic reason for the prices to be where they were. They've exited the market, and now there's a new base under the prices from the biofuel demand. However, I don't think we'll see the same range of price spikes that we saw before.
In a lot of the countries in the developing world, 70% to 75% of the people rely on agriculture for their income. Sometimes higher grain prices can actually help quite a few people in the developing world as well, but maybe not to the levels of the spikes that we saw. We would see a stronger sustained base through some of this trade.