It seems fair to say that the corn market is at risk if, like last year, next Monday's corn stocks are much greater than anticipated.We hope that students of William Shakespeare's plays will forgive us for stealing a line from "Henry V" as the title of our pre-USDA March reports comments. In Shakespeare's play, as we recall, King Henry urges his soldiers to attack the enemy and go "once more unto the breach, dear friends." USDA is certainly not an enemy. However, grain market analysts and market participants facing USDA's important report on 1 March quarterly stocks and initial planting intentions, released the last business day of March, always seem to head "once more unto the breach." We say that because the history of the 1 March stocks...