Warren Buffett and Bill Gates: Keeping America Great

An amended SEC filing by Berkshire Hathaway this afternoon indicates Warren Buffett's company did not have any 'secret' stock holdings as the third quarter ended on September 30.

Warren Buffett may be the nation's most beloved investor, but that hasn't helped make his first name any more popular with parents around the United States over the past few decades.

It was an extraordinary sight: Warren Buffett and Bill Gates walking around the Columbia University campus in Manhattan with CNBC's Becky Quick, and three TV cameras.  During the tour, Buffett and Gates answered Becky's questions on a wide variety of topics.  Here, for the first time in a CNBC.com exclusive, is the complete Buffett-Gates 'Columbia Walk and Talk.'

Warren Buffett doesn't want Congress to "fool around" with the Federal Reserve's political independence.  Here's a CNBC.com exclusive 'web extra' video clip recorded before last week's Warren Buffett & Bill Gates: Keeping America Great.

Warren Buffett will be one of three co-chairmen for a just-announced $500 million Goldman Sachs initiative to help small businesses around the United States, and perhaps, the firm's damaged public image.

Warren Buffett says he's not expecting, and isn't entitled to, "spectacular" returns on Berkshire Hathaway's planned acquisition of the Burlington Northern Santa Fe freight railroad.  This is a transcript of Buffett's comments on his proposed BNSF deal during a broadcast interview on The Charlie Rose Show.