 Concerns have been expressed by the Vatican's Congregation for the Doctrine of the Faith about some aspects of D'Arcy's writing; he was warned in April 2012 that he must now submit his writings and broadcasts to an official censor.D'Arcy has been a prominent supporter of Seán Quinn (once Ireland's richest billionaire) and his family in their court battles with the Irish state.D'Arcy controversially spoke at a rally in July 2012 in protest against the High Court finding Sean Quinn Jnr and his cousin Peter Darragh Quinn were found in contempt of court for not complying with its order to produce the €451 million they had moved out of the state while owing it to the state.