Warren Buffett, chairman and chief executive officer of Berkshire Hathaway Inc., left, Howard Buffett, president of Buffett Farms Inc., center, and Howard Warren Buffett, executive director of the Howard G. Buffett Foundation, stand for a photograph in New York, U.S., on Tuesday, Oct. 22, 2013. Warren Buffett and his late first wife, Susan, gave and pledged billions to each of their three children to fund charitable foundations. Howard, an Illinois farmer, picked global hunger as his target. Photographer: Scott Eells/Bloomberg via Getty Images
