Robert Rubin is a very accomplished person. He is smart, he is honorable and he thinks for the long haul. That's certainly how he behaved as Secretary of the Treasury (and how he also behaved during the ugly fracas over Larry Summers at the Harvard Corporation). Certainly people have been wondering what he thinks about the disaster that is now unfolding in the credit crisis and about how dishonestly the rating business has been pursued. It's not an abstract curiosity. Citigroup has been dragged down by these events, and Robert Rubin is a big player in Citigroup, which the Wall Street Journal this morning suggested might have to be broken up. In fact, Robert Rubin is the chairman of the executive committee of the board of Citigroup. What does he think about how his banking house has behaved and his fellow bankers at Merrill Lynch and Bear Stearns, etc.?