The CBOT opened with a defensive tone as position liquidation/short selling continued in the soybean pit and as traders exited largely profitable wheat positions. Some buy corn/sell soybeans or wheat trade existed early in the day, but corn eventually fell lower under widespread selling and position liquidation. The coronavirus is rapidly spreading in China and is heightening market nerves around the world. Markets hate uncertainty, and the CBOT ag markets are particularly sensitive to this outbreak due to the still-uncertain effects of the U.S.-China Phase One trade deal.  The weekly Export Sales report from USDA held a friendly tone for ag commodities – including an impressive (for MY 2019/20, at least) sales volume for corn...