As we looked at USDA's quarterly stocks estimates last Thursday, for some reason we were reminded of a favorite uncle who passed away many years ago. He would frequently use a saying that he would apply to almost any situation. "It is what it is." We suppose we thought of him in connection with USDA's quarterly stocks numbers simply because they are what they are.USDA's quarterly corn stocks estimates have become a dangerous adventure or a glorious opportunity for anyone with positions in corn futures and/or anyone owning or needing to acquire physical supplies of corn. It has become standard for the quarterly corn stocks estimates to wrench the corn market hard in one direction or the other. If we recall correctly, corn futures have trad...