Pope Francis waves goodbye as he boards a plane after his week-long visit to Brazil to celebrate World Youth Day, at the airport in Rio de Janeiro, Brazil, Sunday July 28, 2013. The tri

 

              Pope Francis waves goodbye as he boards a plane after his week-long visit to Brazil to celebrate World Youth Day, at the airport in Rio de Janeiro, Brazil, Sunday July 28, 2013. The tri
Pope Francis waves goodbye as he boards a plane after his week-long visit to Brazil to celebrate World Youth Day, at the airport in Rio de Janeiro, Brazil, Sunday July 28, 2013. The trip marked the first international foray for the Argentine-born pontiff and his first voyage back to his home continent since becoming pope in March. (AP Photo/Andre Penner