People inspect damage after an airstrike on the rebel held Urm al-Kubra town, western Aleppo city. REUTERS/Ammar Abdullah

Leon Cooperman, chairman and CEO of Omega Advisors, speaks during the Sohn Investment Conference in New York May 4, 2015. REUTERS/Brendan McDermid

Japanese Prime Minister Shinzo Abe speaks during a Reuters Newsmaker conversation in Manhattan. REUTERS/Andrew Kelly

Japanese Prime Minister Shinzo Abe speaks with Reuters Editor In Chief, Steve Adler, during a Reuters Newsmaker conversation in Manhattan. REUTERS/Andrew Kelly

An Apple logo hangs above the entrance to the Apple store on 5th Avenue in the Manhattan borough of New York City, July 21, 2015. REUTERS/Mike Segar/File Photo

German Interior Minister Thomas de Maiziere addresses media during his visit at the federal police inspection in Bremen, Germany, August 10, 2016. REUTERS/Fabian Bimmer

Japanese Prime Minister Shinzo Abe speaks during a Reuters Newsmaker conversation in Manhattan. REUTERS/Andrew Kelly

Chinese Premier Li Keqiang delivers remarks during a meeting with former New York City Mayor Michael Bloomberg and U.S. business leaders at the Waldorf Astoria Hotel during the week of the United Nations General Assembly in Manhattan, New York, U.S., September 20, 2016. REUTERS/Andrew Kelly