Now that we know that the economy has been in a recession since earlier this year, and we reflect on the aftermaths of September 11th, we hear the term low-wage workers a lot. And we hear it because those are the people we assume tend to be hardest hit by recession and by layoffs, but exactly who are America's low-wage workers. What do they do? How much do they earn? And is there a way that they can improve their situation? As part of our ongoing series with the Urban Institute on this edition of Public Interest we examine the issue of low-wage workers.