Gregor Kollmorgen of the New Liturgical Movement has a very insightful post . It arises from a liberal journal called " Jesus " and features an interview with Cardinal Castrillon Hoyos of the PCED. Here is part of the interview on the motu proprio , Summorum Pontificum : What are the questions that have arrived and would deserve an answer? "The first regards Latin, because - they say - to celebrate in a language which you do not know is not convenient. Unfortunately, the seminarians, but also some priests, have not studied it and therefore it is difficult for them to celebrate in the extraordinary form. To do so one should at least know the canon of the Mass , the part of the consecration. We in "Ecclesia Dei" are equipping ourselves and we are preparing meetings, courses and means of electronic communication for a deep knowledge of the earlier liturgy. Some courses are already being held in France, Germany, Brazil, Central America and the United Stat...