Rome Has Spoken is the only book in the World that copiously quotes Christ (God), the Holy Apostles, the Roman Pontiffs, Ecumenical Councils, Church Fathers, Doctors of the Church, Saints, Theologians, Scholars and Historians on "Communicatio in Sacris." The premise of this book is to instruct, educate and clarify what the Roman Catholic Church has always taught in regards to false religious worship with non-Catholics; and, especially, on Praying and Receiving Sacraments at the hands of Schismatics and Heretics-of which, -the Catholic Church has always prohibited and condemned: Communion with Heretics. Moreover, in a time of massive false-Ecumenism and Religious-Indifferentism; Rome Has Spoken is a sure guide on exploring what Saints died for; namely, to refuse at all costs "Communicatio in Sacris" with the Heterodox.