Pope Francis waves from his popemobile as he makes his way into central Rio de Janeiro, Brazil, Monday, July 22, 2013. The pontiff arrived for a seven-day visit in Brazil, the world's most populous Roman Catholic nation. (AP Photo/Victor R. Caivano)

Photo by: Victor R. Caivano

Pope Francis waves from his popemobile as he makes his way into central Rio de Janeiro, Brazil, Monday, July 22, 2013. The pontiff arrived for a seven-day visit in Brazil, the world's most populous Roman Catholic nation. (AP Photo/Victor R. Caivano)