It's not enough to bash in heads, you have to bash in minds
            

High tequila prices; the downside to biofuels

This is biggest downside to biofuels yet. Perhaps enough to doom the technology.

Mexican farmers are setting ablaze fields of blue agave, the cactus-like plant used to make the fiery spirit tequila, and resowing the land with corn as soaring U.S. ethanol demand pushes up prices.

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