That is why the ONLY fair tax is a tax on income. Period, end of story. A National Sales Tax will negatively affect the economy (it punishes buying, so people will buy less), whereas an income tax will be more neutral (it punishes income, but everyone wants their income to go up, so it will not matter).
"That is why the ONLY fair tax is a tax on income. Period, end of story."
An income tax punishes savings and investment which, according to the economists who testified at the President's economic meeting last week, is one of the structural problems of our current tax system and economy that need to be addressed.