Paying more for Pizza

Have you noticed increased prices for pizza lately? You’re not going crazy.
http://www.msnbc.msn.com/id/19375949/
The culprit is cheese. In January 2006, block cheese cost $1.20 on the Chicago Mercantile Exchange. Now, 18 months later, that price has increased 75 percent, to $2.10.
And why has cheese gone up so much in price? Simple. Grain prices have skyrocketed as lots of grain has been converted to ethanol rather than being sold as feed or as food.