Investor Warren Buffett (R) and Microsoft Corporation founder Bill Gates (L) appear together for a town hall style meeting with business students broadcast by financial television network CNBC at Columbia University in New York, November 12, 2009. Reuters Pictures logo Reuters Pictures 4 months ago

Investor Warren Buffett (R) and Microsoft Corporation founder Bill Gates (L) appear together for a town hall style meeting with business students broadcast by financial television network CNBC at Columbia University in New York, November 12, 2009.