In 2007, 60 Minutes asked former Federal Reserve chair Alan Greenspan how he's investing since leaving office. “There’s certain questions I never thought you would ask, but knew if you did, I wouldn't answer and you just hit one of them,” he told Lesley Stahl. Greenspan was one of the longest-serving Federal Reserve chairs in U.S. history, steering the organization for five terms and under four presidents. He died today at the age of 100. #federalreserve #fedchair #greenspan #investing