Prelates wait for the arrival of Pope Benedict XVI at the Cuatro Vientos airbase during the Catholic Church's World Youth Day celebrations, in Madrid, Sunday, Aug. 21, 2011. The Pontiff urged more ... more 
Prelates wait for the arrival of Pope Benedict XVI at the Cuatro Vientos airbase during the Catholic Church's World Youth Day celebrations, in Madrid, Sunday, Aug. 21, 2011. The Pontiff urged more than a million young people to become missionaries for the faith Sunday, giving them words of encouragement as he concluded the church's youth festival and announced that the next edition will be in Rio de Janeiro in 2013. (AP Photo/Gregorio Borgia) less 
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Associated Press | Photo By Gregorio Borgia
Sun, Aug 21, 2011 7:15 AM EDT