We have cautioned against the use of agricultural products and land for liquid fuel - ethanol - production, warning that it was unwise and shortsighted in a hungry world.
Problems have already begun, and the bio fuels industry is still in it's infancy.
Some excerpts from the link follow, but other reports characterize the Mexican demonstrations as "riots".
"Tens of thousands of people have marched through Mexico City in a protest against the rising price of tortillas. "
"The price of the flat corn bread, the main source of calories for many poor Mexicans, recently rose by over 400%. "
"President Felipe Calderon has said the government will clamp down on hoarding and speculation to ease the problem."
"But some blame the rise on demand for corn to make environmentally-friendly biofuels in the United States."
The poorest of people will be the ones victimized by turning valuable agricultural land toward the inefficient production of ethanol. If it's ethanol we want - or methanol, diesel and gasoline , we can make it all from coal, and various wastes. We don't have to steal food from the poor to keep our Caddie's rolling.