Surplus corn is piled outside a storage silo in Paoli, Colo. Do federal farm subsidies encourage the production — and perhaps overconsumption — of things that we're told to eat less of, like high fructose corn syrup or meat produced from livestock raised on subsidized grains? Robert Nickelsberg/Getty Images hide caption

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A farmer deposits harvested corn outside a grain elevator in Virginia, Ill., in 2015. Corn and soy have fallen, and farmers are receiving payments under a new program. The Congressional Budget Office estimates that total government aid to farmers will swell to $23.9 billion in 2017. Seth Perlman/AP hide caption

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