WASHINGTON, DC - AUGUST 05: CEO and co-founder of Blackstone Stephen Schwarzman participates in a session of the U.S.-Africa Business Forum on "Powering Africa: Leading Developments In Infrastructure," during the U.S.-Africa Leaders Summit at the Mandarin Oriental Hotel August 5, 2014 in Washington, DC. The three-day-long summit is to strengthen ties between the United States and African nations. (Photo by Alex Wong/Getty Images)
