Nothing should surprise us anymore. Yet you’d have thought that Little Green Men had landed at the Richard J. Daley Center and planted their Martian flag on the Chicago Picasso. No more dining cars! Soon, no more long-distance trains! The world is ending! It calls to mind a magazine writer, Thomas Frank, who has a habit of starting his long articles by saying, “If such-and-such is true, then. . .” and launching into his thesis. I usually say to myself, “No, Tom, such-and-...