Lehman Brothers' files for Chapter 11, Merrill Lynch is sold to Bank of America, AIG is said to be on the brink--this past weekend marks perhaps the biggest financial shakeup in 70 years. Analysts are using phrases like "tectonic shift," "outsized industry deleveraging" and "fire sales," but it's not really clear what it all means. On our program, we'll help you get a handle on what's happening to Wall Street's giants and what impact it might have on our day to day lives. Join us Tuesday morning at nine on 90.3.