Tax report: wealthiest Americans' share of national income has tripled

Data from an annual report by the IRS provides some interesting revelations about America's top 400 income-earners -- many of whom occupy seats in corporate office suites. To make the top 400, a taxpayer had to have an annual income of more than $138.8 million. In this blog post, Robert Borosage of the Campaign for America's Future offers his take:

Yes, there is a class war, Warren Buffett once said, and my class is winning. The IRS study of taxes paid in 2007 makes his point. The top 1% of taxpayers . . . paid taxes at a rate of 16.6%. As Buffett says, their secretaries pay a higher rate.

The Wall Street Journal points out that the share of the nation's income that these top 400 Americans earned is now "three times the slice they got in the 1990s."