U.S. Secretary of Agriculture Tom Vilsack, right, and Democratic senate candidate Bob Kerrey participate in a news conference in Omaha, Neb., Friday, Aug. 10, 2012, after meeting with Ag producers in Omaha. The federal government on Friday slashed its expectations for U.S. corn and soybean production for the second month in a row as the worst drought in decades continues punishing key farm states. (AP Photo/Nati Harnik)