our discussion today, paul volcker talked about the need for tax reform and said he would like to see his even be older than tackling expenditure and lowering rates, which is kind of the grand bargain and seems what you have been mind. moving toward integrating personal taxes with corporate taxes, or moving toward a consumption tax. very mention of vat. i don't necessarily need you time your detailed plan but how ambitious would you be, how would you look at the revenue raising pursing the incentive trade-offs? you know, can you say a little bit more about the framework you would bri...