INSIGHT-US student debt burden falling more on top earners, easing bubble fears

Jason Delisle, an education policy expert at the New America Foundation in Washington, has analyzed government data and estimates that about 40 percent of current U.S. student loan balances were taken out to finance grad school. This, he says, should temper worries about the debt burden's wider impact. "It's almost like the problem goes away," said Delisle, who used to be a senior analyst on the Republican staff of the U.S. Senate Budget Committee.