Terry Connelly, Dean of Golden Gate University's Ageno School of Business (my alma mater), discusses the United States response to the accounting and finance scandals of the early 2000's in two videos that are available on YouTube.  The videos are titled "What Sarbanes-Oxley Did and Didn't Cure in our Financial System" and is available via these links in two parts:

They are very good overviews and worth watching (only about 10 minutes each).  Connelly holds a BA from The Catholic University of America and a law degree from NYU School of Law.