The current politics of free trade are so complex that the basic issues involved sometimes get lost.One definition of free trade is that it allows me to freely export goods and services to you, but it does not allow you to export freely to me.A great many years ago, I spoke at an annual members meeting of a Midwestern regional coop, which included farmers plus managers and board members of country elevators that were part of the group. After I had finished, one farmer asked why everyone paid so much attention to grain exports since he could not see how that benefitted him. I was surprised as I assumed grain exports were completely noncontroversial. The best response I could formulate on the fly was to point out that about half of each year'...