Sharp selling emerged at the CBOT today in response to weaker overnight prices. Cash prices for soybeans and corn have weakened in response to farmer selling that recent futures gains encouraged. The pressure continued today as Chinese officials were light on details about the recent trade talks, leading traders to execute the second leg of "buy the rumor, sell the fact" strategies.  Wall Street is presently mixed in largely lackluster trading. The S&P 500 is up 6.2 points (0.2%) while the Dow Jones 30 index is up 65 points (0.3%). Equities came under pressure early from U.S. retailers reporting disappointing holiday earnings (including Macy’s and Kohls) as global economic data was moderately disappointing as well. Chinese d...