What’s Lloyd Blankfein afraid of? You can pick any number of things that could have caused the chairman and CEO of Goldman Sachs to go out and hire an expensive criminal defense attorney, but his most pressing concern has to be a guy named Rajat Gupta. Gupta was a friend of Raj Rajaratnam, the founder of Galleon Group who is going to jail for insider trading. Gupta was also an esteemed member of Goldman’s board of directors and would have been aware of anything important that was occurring at Goldman Sachs. Phone conversations with Gupta that came up during Raj’s...