U.S. Citizenship and Immigration Services has done the right thing, substantively, regarding the dubious colleges that still haunt our immigration system, and it did so with what might be called bureaucratic elegance — and I mean that as a compliment. As usual, in Washington, the move is complicated and the thrust of the decision may well get lost as it seems, at first glance, to be specialized, narrow, and lacking in drama. There is no wall, no billions of dollars, no mass deportations. All of that is true, but to a policy wonk like me, the USCIS decision is a thing of beauty.