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U.S. Drought Could Cause Global Unrest

Wired: Twice in the last five years, rising food prices triggered global waves of social unrest. With drought baking U.S. crops, another round of soaring, society-straining price spikes may happen in coming months. According to researchers from the New England Complex Systems Institute, commodity speculation - investors betting on food prices - will amplify the drought`s market signals, creating a new food bubble and the crises that follow. "The drought is clearly going to kick prices up. It already has....