Air Date: Week of June 7, 1991
High in the Bolivian Andes, twenty thousand farmers barely survive on land that, over a thousand years ago, supported a powerful empire with a quarter of a million people. An American anthropologist believes he's uncovered the secrets to the ancient Indians' success, and has begun to reintroduce the old farming method. Bruce Gellerman reports that if successful, the reintroduction could have a significant impact on the future viability of the local culture.
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