Complex sentence: The Tanner's argument begs the point however, since the leadsership of the LDS Church has never claimed infallability and it also ignores the fact that the Church's efforts to obtain and archive historically significant material extends to works even by anti-Mormon authors.
Split into simpler sentences: The Tanner's argument begs the point however, since the leadsership of the LDS Church has never claimed infallability. It also ignores the fact that the Church's efforts to obtain and archive historically significant material extends to works even by anti-Mormon authors.