From the New York Times:
Pope Benedict XVI has signed a document that would allow more churches to adopt the old Latin Mass that largely faded from use during the 1960s, when the groundbreaking Second Vatican Council opened the door to worship in the local vernacular, Vatican officials say.
The revival of what is known as the Tridentine Mass has long been promoted by Roman Catholic traditionalists, who say it is more moving, contemplative and historically authentic than the modern Mass.
But Pope Benedict has been hearing resistance from cardinals and bishops, many of them in Europe, who argue that the change would divide the church by promulgating two very different official rites.
They say that it could create rifts in smaller parishes that cannot agree which Mass to use, and that it would burden already overburdened members of the clergy, many of whom do not know Latin and were never trained to perform the older rite’s more complex choreography.