WASHINGTON (Thomson Financial) - Former Federal Reserve chief Alan Greenspan says current chairman Ben Bernanke 'is doing an excellent job.' 'I'm not certain I would have done anything different,' if he had been chairman today Greenspan told the CBS News program 60 Minutes in an interview to be broadcast Sunday night. CBS released a a summary of the interview to reporters. Greenspan confessed he 'didn't really get it' about how serious a threat subprime lending could be to the economy 'until very late in 2005 and 2006,' even though he was aware of many questionable subprime lending practices. The former Fed chairman ... (full story)