Pope Francis celebrates mass at the Sao Sebastiao Cathedral in Rio de Janeiro, in this July 27, 2013 file photo. Pope Francis said the Catholic Church must shake off an obsession with teachings on ... more 
Pope Francis celebrates mass at the Sao Sebastiao Cathedral in Rio de Janeiro, in this July 27, 2013 file photo. Pope Francis said the Catholic Church must shake off an obsession with teachings on abortion, contraception and homosexuality and become more merciful or risk the collapse of its entire moral edifice "like a house of cards". REUTERS/Luca Zennaro/Pool/Files (BRAZIL - Tags: RELIGION) less 
1 / 31
Reuters | Photo By POOL / REUTERS
Fri, Sep 20, 2013 5:28 AM EDT