GETTYSBURG INTERLUDE: In lieu of my further adventures in the wilds of deepest, darkest Pennsyltucky, I give you instead a long and profound effort on the economic consequences of racism in America. I am sure you will find this piece intellectually stimulating and profoundly moving, and tests have shown that the essay does not cause bladder cancer or psoriasis in laboratory rats, just in case you are worried about that sort of thing.