May 3 (Bloomberg) -- Billionaire investor Warren Buffett talks with Bloomberg's Betty Liu about Goldman Sachs Group Inc. Chief Executive Officer Lloyd Blankfein.¶ Buffett, who invested $5 billion in the bank in 2008, said Blankfein has "done a great job running" Goldman. They spoke on May 1 before Berkshire Hathaway Inc.'s annual shareholders meetings in Omaha, Nebraska. (Source: Bloomberg)