from the link
“This falls under the Ordinary Magisterium. To be infallible it must be either Ex Cathedra, which it is not or it must be an established dogma.”
Manning, Henry Cardinal. Vatican Decrees in their Bearing on Civil Allegiance. London: Longmans, Green & Co., 1875. pg 57, et. seq.: “But it is also true that these relations have been declared by the Church in acts and decrees of infallible authority. Such, for instance, is the bull of Boniface VIII., Unam Sanctam. As this has become the text and centre of the whole controversy at this moment, we will fully treat of it.
This bull, then, was beyond all doubt an act ex cathedra.… Whatever definition, therefore, is to be found in this bull is to be received as of faith.”
From EWTN
ewtn.com/v/experts/showmessage.asp?number=362993&Pg=&Pgnu=&recnu=
"The new Catechism is not infallible, Unam Sanctam is. "
I stand by my point : Catholics do NOT what is and is not infallible