It's been a volatile week for investors -- and it's only Tuesday. Shares of widely held stocks like Apple (NASDAQ:AAPL), AIG (NYSE:AIG), Bank of America (NYSE:BAC), and Level 3 Communications (NASDAQ:LVLT) all fell by more than 15%. On Tuesday, many of those stocks regained their losses. So what does it all mean for investors? What does it mean for your retirement? Just how bad is it? In this installment of "Fool Video," Online Managing Editor LouAnn DiCosmo talks with Fool analysts Bill Mann and Robert Brokamp.