After the fall of Saddam in 2003, some Chaldean Catholic priests fled to the West and "joined other churches", Patriarch Louis Raphaël I Sako has said. A new group of American priests and nuns dedicated to exposing abuse will be officially launched this week, reports the New York Times. A Vatican spokesman has denied that Pope Francis performed an exorcism in St Peter's Square on Sunday (report in Italian). Pickpockets are targeting tourists craning their necks to see the ceiling of the Sistine Chapel, tour guides in Rome have said. Shawn Tribe, founder of the New Liturgical Movement website, announces his retirement from blogging. Fr George Coyne SJ says that "the ghost of Galileo" comes back to speak to the Church. And Pope Francis has replied to youngsters at a juvenile detention facility in Los Angeles who wrote to him, thanking him for washing the feet of young prisoners on Holy Thursday (video) Follow me on Twitter @lukecoppen for updates throughout the day