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Playing the field: Ethanol in Iowa

It used to be said that even talking about possible cuts in Social Security benefits was the third rail of American politics. A mere mention of it could kill a run for the White House. But this year, reforming Social Security is a big part of the conversation. And so too is what’s been a third-rail issue in Iowa: ending ethanol subsidies. As Need to Know’s Win Rosenfeld discovered during a visit to the Hawkeye state this past summer, the unmentionable is suddenly being mentioned.

Watch the rest of the segments from this episode.