From that article ....see link at post # 16:
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Flawed carbon accounting schemes at both the federal and state level are creating a dynamic where the U.S. is importing ethanol from Brazil while simultaneously exporting greater volumes back to Brazil.
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This ethanol shuffle is occurring exclusively as the result of state and federal fuel regulations that treat Brazilian sugarcane ethanol as if it were the Holy Grail of biofuels, according to Geoff Cooper, the Renewable Fuels Associations Vice President of Research and Analysis.
Let Brazil have the advantage by letting them keep all their ethanol, and we can keep our corn for food, trade problem solved, energy saved.