If you actually think our senators and congresspeople really want to scrap the current tax code for something simple(and accountable), then you sir are mistaken.
The current tax code is there for the benefit our representatives who need a way to show their gratification to corporations by "tweaking" the tax code. It's a systemic problem that won't go away easily.
Actually I think it's a great idea. Since I'm way over the top tax bracket, anything like this will be a huge windfall to me.
I think this would also create a huge increase in gray market goods.
Living in Florida, this is fantastic since we don't have a state sales tax (just a big property tax). We now get to deduct the sales tax we pay on items we buy for consumption (like the Maserati!). Those who spend the most save the most-- another way to stimulate consumption in a muddling economy which I really can't complain about!