There's been a shift in the economic discussion in American politics. For months, the debate was focused on government spending, regulations, debt and taxes. Now there's something new: income inequality.
And it's not just the Occupy Wall Street protesters who are worried about the growing gap between the richest 1 percent and the rest of America. The gap has been growing for 30 years, but in the midst of the recession, it appears to have reached a tipping point.