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In a photo an E85 fuel pump is shown Friday, March 3, 2006, at the Ohio Department of Agriculture in Columbus, Ohio. The fuel consists of 85 percent ethanol and 15 percent petroleum. After a spurt of good fortune, the fledgling U.S. ethanol industry is anticipating some growing pains that could bring it unwanted attention this summer. (KEYSTONE/AP Photo/Kiichiro Sato)