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Healthy ear of corn
Journalist Michael Pollan, author of "The Omnivore's Dilemma," says much of the food we eat can be traced back to corn and soybeans.
MPR Photo/Mark Steil
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Journalist Michael Pollan, author of "The Omnivore's Dilemma," says much of the food we eat can be traced back to corn and soybeans.
MPR Photo/Mark Steil