The recent news regarding trade has been a mixed bag. On the positive side President Trump yesterday signed the USMCA triangular trade agreement between the U.S., Mexico and Canada. Mexico has already ratified the agreement, but Canada has not done so yet. Canadian Prime Minister Justin Trudeau is expected to have little trouble receiving parliamentary approval although there may be some grousing over the cracks in the heretofore tight restrictions on dairy and poultry imports that the USMCA provides. In fact, it is U.S. dairy and poultry interests that will benefit from increased export opportunities. The USMCA will not lead to an increase in U.S. grain or soy exports to Mexico and Canada beyond what would have happened anyway. But it is...