Reporter tells Vatican court he was obliged to publish news

Italian journalist Gianluigi Nuzzi leaves the Vatican from the Perugino gate, Wednesday, April 13, 2016. Two Italian journalists who wrote books detailing Vatican mismanagement face trial in a Vatican courtroom along with three people accused of leaking them the information in a case that has drawn scorn from media watchdogs. (AP Photo/Alessandra Tarantino)