The Vatican announced Monday that two members of a commission set up by Pope Francis to study financial operations at the Holy See had been arrested on suspicion of leaking confidential documents to journalists. The arrests came days before the publication of two books - Avarizia," or "Avarice," by Emiliano Fittipaldi, and "Merchants in the Temple," by Gianluigi Nuzzi. Both books claim to offer glimpses of the turmoil surrounding Francis as he pursues his reforms of Vatican finances, the operations of the Curia and the Vatican bank. Those institutions had long been plagued by scandal and corruption that contributed to the resignation in 2013 of Francis' predecessor, Pope Benedict XVI, the first pope to step down in nearly 600 years. Divulging confidential documents has been considered a crime in the Vatican since July 2013, after the leak of a cache of Vatican documents ... which Mr. Nuzzi published. Besides reporting on the church's vast financial holdings, Mr. Fittipaldi said he had also discovered that money given to the church for the poor was used for other purposes. Mr. Nuzzi's book ... suggests that the Vatican's finances were in such chaos that Benedict had no choice but to resign. "I am certainly surprised that the Vatican responds to the imminent publication of a book with handcuffs," Mr. Nuzzi said ... particularly "when handcuffs aren't used to stop the thieves in the Vatican."