Because of the repercussions heard around the world since the July 16th release by the Vatican of Pope Francis’ Motu proprio TRADITIONIS CUSTODES On the Use of the Roman Liturgy Prior to the Reform of 1970, I am dedicating the interview segment of Vatican Insider to a Special about this papal document. I will try to examine the whys and wherefores of TRADITIONIS CUSTODES – which is Latin for Guardians of Tradition – and look at its reception.