Episode Name: Greg Mortenson, Howard Buffett, Novak Djokovic
Episode Overview: An investigation into the validity of humanitarian Greg Mortenson's best-selling stories. Also: Howard Buffett, who will succeed his father, Warren Buffett, as the head of a multibillion-dollar holding company; and tennis player Novak Djokovic.
Episode Number: 40
Episode Season: 44
Episode First Aired: 2012-06-24