Allegations that the prelate chosen by Pope Francis to oversee Vatican bank reforms led a scandalous double life are “not credible”, a Vatican spokesman has said (original report). Pilgrims will be forbidden to wear masks at the Pope's World Youth Day Masses in Rio, security forces have said. The Pope will celebrate Mass at the Church of the Gesù in Rome on July 31, the feast day of Jesuit founder St Ignatius of Loyola. A Polish priest has said he will appeal to the Pope after he was forced to leave his parish over a blog post accusing Church leaders of speaking "a language of hate". An American researcher has concluded that Catholic couples who attend weekly Mass have the most satisfying sexual relationships of any group. Joyce Coronel profiles the American Sister who has knocked on the doors of about 4,000 homes to invite Catholics back to Mass. And Pope Francis is expected to be greeted by the largest flash mob in history when he visits Brazil next week (video). Follow me on Twitter @lukecoppen for updates throughout the day.