A society always gets more of whatever it subsidizes, whether it's corn, tobacco or the idle rich. And subsidizing spoiled heiresses at the expense of, well, everyone else is the goal of those members of Congress who are pushing to greatly reduce, or even repeal, the federal estate tax. Despite reams of data that show that the estate tax only touches the top 1 percent of U.S. taxpayers, and despite the fact that the Mom and Pop businesses and family farms of the sort that earn our sympathy simply are not affected by this tax, the repeal has already passed...