Flanked by Mexico's President Enrique Pena Nieto, and first lady Angelica Rivera, Pope Francis waves goodbye, before his departure at the Abraham Gonzalez International Airport in Ciudad Juarez, Mexico, Wednesday, Feb. 17, 2016. Francis returned to Italy after a five-day visit in Mexico. His plane took off from the border city of Ciudad Juarez after night fell Wednesday. (AP Photo/Ivan Pierre Aguirre)