The TED spread—the difference between the interest rate on 3-month US Treasuries and what banks charge each other for 3-month loans—is at stratospheric levels. The conventional wisdom is that the spread is high now because banks perceive a high risk of not being repaid. In normal times, the TED spread is about 0.5 percentage point. Today, it rose to 2.76 points from just over 2 points yesterday. It hasn't been over 2.5 since 1987 (just before the stock market crashed in the fall). If banks are this worried about the financial mess, why should I be calm?