Warren Buffett and Bill Gates: Keeping America Great

In an exclusive event, CNBC presents Warren Buffett and Bill Gates, together, taking questions from students at Columbia Business School in New York City. Host Becky Quick talks with the two billionaires, whose values run as deep as their wealth. Original air date: November 12, 2009. (1:04:51)
Thu, Nov 12 20099:00 PM EST