section_path: Pre-papal career: 1951–2005/Prefect of the Congregation for the Doctrine of the Faith: 1981–2005
section_name: Prefect of the Congregation for the Doctrine of the Faith: 1981–2005
paragraph_text: Prefect of the Congregation for the Doctrine of the Faith: 1981–2005
  
  On 25 November 1981, Pope John Paul II, upon the retirement of Franjo Šeper, named Ratzinger as the Prefect of the Sacred Congregation for the Doctrine of the Faith, formerly known as the "Sacred Congregation of the Holy Office ", the historical Roman Inquisition. Consequently, he resigned from his post in Munich in early 1982. He was promoted within the College of Cardinals to become Cardinal Bishop of Velletri-Segni in 1993 and was made the college's vice-dean in 1998 and dean in 2002. Just a year after its foundation in 1990, Ratzinger joined the European Academy of Sciences and Arts in Salzburg.
  
  Ratzinger defended and reaffirmed Catholic doctrine, including teaching on topics such as birth control, homosexuality, and inter-religious dialogue. The theologian Leonardo Boff, for example, was suspended, while others such as Matthew Fox were censured. Other issues also prompted condemnations or revocations of rights to teach: for instance, some posthumous writings of Jesuit priest Anthony de Mello were the subject of a notification. Ratzinger and the congregation viewed many of them, particularly the later works, as having an element of religious indifferentism (in other words, that Christ was "one master alongside others"). In particular, Dominus Iesus, published by the congregation in the jubilee year 2000, reaffirmed many recently "unpopular" ideas, including the Catholic Church's position that "salvation is found in no one else, for there is no other name under heaven given to men by which we must be saved." The document angered many Protestant churches by claiming that they are not churches, but "ecclesial communities".
  
  Ratzinger's 2001 letter De delictis gravioribus clarified the confidentiality of internal church investigations, as defined in the 1962 document Crimen sollicitationis, into accusations made against priests of certain crimes, including sexual abuse. This became a subject of controversy during the sex abuse cases. For 20 years, Ratzinger had been the man in charge of enforcing the document.
  
  While bishops hold the secrecy pertained only internally, and did not preclude investigation by civil law enforcement, the letter was often seen as promoting a coverup. Later, as pope, he was accused in a lawsuit of conspiring to cover up the molestation of three boys in Texas, but sought and obtained diplomatic immunity from liability.
  
  On 12 March 1983, Ratzinger, as prefect, notified the lay faithful and the clergy that Archbishop Pierre Martin Ngô Đình Thục had incurred excommunication latae sententiae for illicit episcopal consecrations without the apostolic mandate. It is reported that in 1997, when he turned 70, Ratzinger asked Pope John Paul II for permission to leave the Congregation of the Doctrine of Faith and to become instead the head of the Vatican Secret Archives and of the Vatican Library, but John Paul refused his assent.
  
  Ratzinger engaged in a dialogue with critical theorist Jürgen Habermas in 2004, published three years later by Ignatius Press.
  
  On 25 November 1981, Pope John Paul II, upon the retirement of Franjo Šeper, named Ratzinger as the Prefect of the Sacred Congregation for the Doctrine of the Faith, formerly known as the "Sacred Congregation of the Holy Office ", the historical Roman Inquisition. Consequently, he resigned from his post in Munich in early 1982. He was promoted within the College of Cardinals to become Cardinal Bishop of Velletri-Segni in 1993 and was made the college's vice-dean in 1998 and dean in 2002. Just a year after its foundation in 1990, Ratzinger joined the European Academy of Sciences and Arts in Salzburg.
  
  Ratzinger defended and reaffirmed Catholic doctrine, including teaching on topics such as birth control, homosexuality, and inter-religious dialogue. The theologian Leonardo Boff, for example, was suspended, while others such as Matthew Fox were censured. Other issues also prompted condemnations or revocations of rights to teach: for instance, some posthumous writings of Jesuit priest Anthony de Mello were the subject of a notification. Ratzinger and the congregation viewed many of them, particularly the later works, as having an element of religious indifferentism (in other words, that Christ was "one master alongside others"). In particular, Dominus Iesus, published by the congregation in the jubilee year 2000, reaffirmed many recently "unpopular" ideas, including the Catholic Church's position that "salvation is found in no one else, for there is no other name under heaven given to men by which we must be saved." The document angered many Protestant churches by claiming that they are not churches, but "ecclesial communities".
  
  Ratzinger's 2001 letter De delictis gravioribus clarified the confidentiality of internal church investigations, as defined in the 1962 document Crimen sollicitationis, into accusations made against priests of certain crimes, including sexual abuse. This became a subject of controversy during the sex abuse cases. For 20 years, Ratzinger had been the man in charge of enforcing the document.
  
  While bishops hold the secrecy pertained only internally, and did not preclude investigation by civil law enforcement, the letter was often seen as promoting a coverup. Later, as pope, he was accused in a lawsuit of conspiring to cover up the molestation of three boys in Texas, but sought and obtained diplomatic immunity from liability.
  
  On 12 March 1983, Ratzinger, as prefect, notified the lay faithful and the clergy that Archbishop Pierre Martin Ngô Đình Thục had incurred excommunication latae sententiae for illicit episcopal consecrations without the apostolic mandate. It is reported that in 1997, when he turned 70, Ratzinger asked Pope John Paul II for permission to leave the Congregation of the Doctrine of Faith and to become instead the head of the Vatican Secret Archives and of the Vatican Library, but John Paul refused his assent.
  
  Ratzinger engaged in a dialogue with critical theorist Jürgen Habermas in 2004, published three years later by Ignatius Press.