It is easy to tell that the farm bill is right around the corner because all the anti-farm program think tanks are suddenly engaging in the policy debate.Next week an invitation-only policy confab is being convened to criticize crop supports, export promotion programs and crop insurance. Moreover, its coalition of sponsors can say with some accuracy that they span the policy spectrum. The U.S. Public Interest Research Group (PIRG), a more-to-the-left policy organization, has joined forces with a number of groups positioned right of center on policy matters, including The R Street Institute, National Taxpayers Union, Taxpayers for Common Sense, The Heritage Foundation, Heartland Institute, Citizens Against Government Waste, Club for Growth a...