Maize markup

from Today's Papers:

The price of corn has risen 80 percent in the last year because of rising ethanol use, and the Post reports from Mexico in a front-page story that the price of tortillas, a staple food, has tripled or quadrupled as a result.

"Mexico is in the grip of the worst tortilla crisis in its modern history," the paper says without, unfortunately, providing any context of other tortilla crises.