Goldman Sachs Chief Executive Lloyd Blankfein has hired Reid Weingarten, a high-profile Washington defense attorney whose past clients include a former Enron accounting officer, according to a government source familiar with the matter...The move to retain Weingarten comes as investigations of Goldman and its role in the 2007-2009 financial crisis continue. The Securities and Exchange Commission scored a $550 million settlement against the bank in a fraud lawsuit in July 2010, but other investigations continue. "Why do you bring in someone like that?" said the source, who was not authorized to speak publicly. "It says one thing: that they're taking it seriously." [Reuters]