A couple of years ago, I was telling a friend and neighbor (who was working at the New York Fed at the time), that I was concerned about the mountains of debt that were being used in buyouts. My friend was looking into hedge fund leverage for Timothy Geithner and agreed that someone ought to do the same for PE funds, but I don’t think anything ever came of it. My big concern back then was the appearance of a deal structure that struck me as having the wrong incentives. I was also worried that...