[gitmo]

The 16th amendment simply allows an income tax, it does not require it. Used items will not be taxed(no double taxing).

In theory you are correct. But how many years since 1913 has the US Government opted out on their power to exercise the Income Tax? Before we give the Feds a sales tax we MUST remove their ability to tax income. They absolutely will double dip.

[topfile]

One of the fundamental requirements of the fair tax is to repeal the income-tax. Your likely not aware that this is a talking point of the fair tax opponents and is used often. I don’t believe anyone would sit still for both. This is still a republic you know.