Bishop Nguyen added his name to a letter released August 29, 2018 by Bishop Vann saying “I see Archbishop Viganò as a man of integrity, having known him for many years.” The letter called on the Pope to “ensure that a competent investigation be undertaken swiftly” and that “just penalties should be imposed upon those found guilty.” The letter urged Catholics to pray for abuse victims as well as Pope Francis during “these difficult days.”