** FILE ** Jeff Abbey looks over plants in a soybean field in a file photo Aug. 18, 2005, in Urbana, Ill. U.S. Trade Representative Rob Portman concedes it's unlikely that next week's WTO summit in Hong Kong will result in any breakthroughs on the thorny issue of agricultural trade, and that's just fine with many U.S. farm groups. (AP Photo/Darrell Hoemann, File)