Last month, the White House introduced a program that would effectively overhaul the tax code and, as Robert Kuttner put it, "locked [Obama] in as a defender of social insurance and working Americans." The five-pronged tax plan would cut rates and inefficient and unfair tax breaks, increase investment and growth in the United States, reduce the deficit by $1.5 trillion over 10 years and -- most contentiously -- institute the "Buffett rule."