Alan Greenspan, Federal Reserve Chairman from 1987-2006, admitted before the House Committee onGovernment Oversight and Reform that he made mistakes as Fed chairman. Greenspan said the "flaw" in the assumptions he had over four decades was that lending institutions themselves were best able to protect the interest of their shareholders. The testimony marked a dramatic shift from a previously defensive position regarding his terms as chairman.

Meanwhile, the major ratings agencies, Moody's and Standard and Poor's, are undergoing thorough investigation by Congress as internal conversations about ignoring risk to make profits are revealed.

Snapshot asks, should regulators be making assumptions about the ability of financial institutions to manage their own risk?