Warren Buffett Speaks At Conference Focused On Detroit's Revitalization [Getty Images]

DETROIT, MI -Billionaire investor Warren Buffett speaks at an event called, "Detroit Homecoming" September 18, 2014 in Detroit, Michigan. The purpose of the invitation-only event of Detroit expatriats is to give the group a chance to reconnect, reinvest and reinvent with their hometown. The topic of Buffet's conversation was, "Why I'm Bullish on Detroit." (Photo by Bill Pugliano/Getty Images)

Getty Images News Bill Pugliano