Alan Greenspan, who served as Fed Chairman for almost 20 years, died last month at the age of 100. He was a talented and faithful public servant who guided U.S. monetary policy through the stock market crash of 1987, the boom years of the 1990s and the dot-com bubble. He was thoughtful and witty in his public comments. However, he seemed to regard a lack of clarity as almost a virtue. He inherited a Fed that had always been reticent to communicate and he largely maintained that cloak of secrecy.