Catholics told not to give LDS parish data
The Catholic Church has ordered dioceses across the globe not to give information in parish registers to members of The Church of Jesus Christ of Latter-day Saints. [..] CNS reported the Vatican had "grave reservations" about the LDS Church's practice of posthumous baptisms by proxy, a practice in which the names of the deceased are baptized into the LDS faith so that they may be united in the afterlife with LDS families, if they so choose.
Ref. https://deseretnews.com/article/1,5143,695276377,00.html
Interesting. I wonder why the Catholic Church singled out the LDS Church in this letter? As the article stated, the Catholic Church has a policy of not allowing documents to public unless they belong to the person that request them.