General Comments Corn has sold off a dollar and soybeans almost $2 in the past month. The strong basis and slow decline in open interest makes it appear that someone has been buying as funds reduced their long positions over that time period. That someone may be commercial end-users. Such acquisitions can make holders of grain increasingly wary about becoming overextended in short hedges. Even if Friday morning's USDA Grain Stocks report contains a bearish surprise, somebody has to sell first and buyers need to at least temporarily reduce their interest if prices are to make another move down. Sellers may become increasingly scarce if USDA's data is somewhat bearish and prices seem to still hold. Conceivably, a pronounced increase in sel...