TOPSHOT - Pope Francis speaks to journalists aboard the flight from Mexico to Italy, on  February 18, 2016. 
Pope Francis left Rome on February 11, 2016 bound for Cuba, where he met Russian Patriarch Kirill before continuing on to Mexico for a five-day visit.   / AFP PHOTO / POOL / ALESSANDRO DI MEO        (Photo credit should read ALESSANDRO DI MEO/AFP/Getty Images)