When in 1949 Fr. Leonard Feeney, SJ accused the Archbishop of Boston, Richard J. Cushing, of heresy for holding that Jews and Protestants could be saved, he backed up his charge by producing passages from the writings of fathers of the church such as St. Augustine, of eminent theologians such as St. Thomas Aquinas, and from the decrees of popes and councils, to prove that it was a dogma of faith that there is no salvation outside the Catholic Church...