No Clause for Celebration USA -- In its recent decision upholding the federal government's authority to pluck marijuana from the hands of desperately ill people who use it as a medicine, the U.S. Supreme Court noted in passing that "most domestic drug regulations prior to 1970 generally came in the guise of revenue laws." That's a puzzling fact if, as the Court now insists, the power to "regulate Commerce...among the several States" includes the power to ban certain plants and their products from backyards and dresser drawers throughout the nation. As the Court explained, the Marihuana Tax Act of 1937...