FILE - This Oct. 4, 2012 file photo shows un-harvested corn in a field near Council Bluffs, Iowa. Farmers will produce a record-breaking corn harvest in 2014, surpassing earlier expectations of the ... more 
FILE - This Oct. 4, 2012 file photo shows un-harvested corn in a field near Council Bluffs, Iowa. Farmers will produce a record-breaking corn harvest in 2014, surpassing earlier expectations of the U.S. Department of Agriculture, which on Tuesday, Aug. 12, 2014, revised upward its estimate of this year's corn crop to 14 billion bushels to exceed last year's 13.9 billion bushel record. (AP Photo/Nati Harnik, File) less 
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Associated Press | Photo By Nati Harnik, File
Tue, Aug 12, 2014 10:12 PM EDT