Herman Cain has proposed a brilliantly simple 9-9-9 Plan for funding the Federal Government. This tax plan is a combination nine percent "flat" income tax, a nine percent sales tax (VAT) and a nine percent corporate tax rate. There is, however, one glaring oversight. What is to prevent future "Obamaesque" or "New Deal" Administrations from changing it to a 12-12-12 Plan? Or, 20-20-20 Plan?