I hope you are not talking about Perry's not-so-flat 'flat' tax.
I prefer a consumption tax and I liked Cain's 9-9-9 plan except for the elimination of the payroll deduction that Schiff pointed out last week.
The problem with 9-9-9 is that the politicians are not going to keep those numbers at 9 for long. Herman is adding a new tax, and inevitably, they will all increase. Reagan fell for the Democrats’ promises when he accepted the elimination various deductions in exchange for lower rates. Well, didn’t stay lower, and the deductions were not restored.