A week-long course on exorcism will be held in April at the Pontifical Athenaeum Regina Apostolorum, a Catholic educational institute in Rome. In 2011, the Catholic Church warned that a surge in Satanism, facilitated by the internet, had led to a sharp rise in the demand for exorcism, and a six-day conference on the subject took place at the institute. The announcement of the training course is likely to be welcomed by Father Pat Collins, a Irish leading exorcist who said recently he is “baffled” why Church leaders are not taking action as more people claim to be victims of...