One of the things that I have always been told is that the Pope is infallible in matters of faith and doctrine and also when he speaks ex cathedra (is that one in the same?) Additionally, I have been taught that all teachings of the church are in harmony - i.e. new teachings do not contradict previous teachings - and that the current teachings must be taken in context of the previous teachings (so there is no rupture). All of that being said, how does one interpet some of the post-Conciliar documents since there seems to be (on this Forum, at least) quite a bit of departure from earlier doctrine. The same question applies to Vatican II. Are all Papal documents considered infallible if they concern faith and doctrine (Bulls, etc?). Sometimes it seems as though we are working really hard to fit a square peg into a round hole when the obvious answer is that this new document is an obvious departure from earlier doctrine or teachings – but if that is the answer, then how does that jive w/ Papal Infallibility and the Infallibility of the Church?