Food shortage

I read the other day that the U.S. was running out of rye and wheat. Rye inventories were down to about 2 weeks supply and were expected to run out by June. Wheat was only slightly better. Now Digby is talking about a run on rice at Wal-mart and Costco:

Food-related protests have been occurring worldwide, and in the U.S. now major discounters are seeing runs on products, particularly rice, as both Sam’s Club, the Wal-Mart Stores Inc. operated discounter, and Costco Wholesale Corp. have seen shelves cleaned out of rice as consumers worry about higher prices.

Ahhhh, the great advantages of corn ethanol.