MILAN, ITALY - MAY 01: Italian Prime Minister Matteo Renzi speaks at the Opening Ceremony - Expo 2015 at Fiera Milano Rho on May 1, 2015 in Milan, Italy. (Photo by Vincenzo Lombardo/Getty Images)
MILAN, ITALY - MAY 01: Italian Prime Minister Matteo Renzi speaks at the Opening Ceremony - Expo 2015 at Fiera Milano Rho on May 1, 2015 in Milan, Italy. (Photo by Vincenzo Lombardo/Getty Images)