The Catholic Church - says that the Canon Law of LATERAN IV 1215 Canon 3 - calling for the "extermination of heretics" and Jews -- is "infallibly" correct to this very day. This downward spiral illustrated in 1215 (and kept up in the dark ages) leads to a great many incidents of torture and death including those of the inquisition. 50 million Christians died this way according to some. The excuses for Catholic crimes against humanity in those dark ages - fall far short of accounting for the lack of remorse, confession, turning from such practices but rather claiming them to this very day of enlightenment - to be "infallibly correct". horrific. The so-called "Doctrine of Discovery" did in fact use ISIS-like logic to justify killing the natives of countries that you discover if those natives refused to convert. Imagine the horror of finding that some obscure protestant today still considered burning Catholics or witches alive an "infallibly correct thing to do" to "purify society or the church or doctrine" -- only THEN do you even begin to admit to the magnitude of the RCC problem that remains today. Wouldn't you agree?