General Comments Grain and soy futures were generally weaker in overnight trading. When March soybeans could not hold above their four-week high, technical selling ensued, and in the absence of fresh news or inputs, it dragged down everything else, too. The day session looked at a good export sales report from last week, including the highest weekly soybean sales volume so far this crop year, but it failed to excite traders, who more or less decided to ignore it. Instead, they preferred to cash in short-term profits from the recent rally, and this type of selling took everything lower across the board except for soyoil.Almost a week has gone by since the USDA reports. That is a long time on the market's clock, and those reports have beco...