Nearly half of all American households pay NO Income taxes. Is that a good thing?

The result is a tax system that exempts almost half the country from paying for programs that benefit everyone, including national defense, public safety, infrastructure and education. It is a system in which the top 10 percent of earners -- households making an average of $366,400 in 2006 -- paid about 73 percent of the income taxes collected by the federal government.

The bottom 40 percent, on average, make a profit from the federal income tax, meaning they get more money in tax credits than they would otherwise owe in taxes. For those people, the government sends them a payment.