CathInfo.com

The first point: Outside the Catholic Church there is no salvation. A Catholic views this as it is written. The Liberal Catholic says one must understand this as the Church understands it. Thus, implying that it means something other than what it says.
The Second point: The Catholic believes that the Magisterium has declared that there is no Salvation outside the Church. The Liberal Catholic believes that this Magisterial pronouncement must be subjected to the further interpretation by non-magisterial men and books and thus widens the definition of what it means to be "IN" or "OUTSIDE" the Church effectively granting salvation to any "nice person".
The Third point:The Catholic understands what infallible means and thus does not accept any teaching that contradicts an infallible teaching like EENS. The Liberal Catholic looks at the EENS Dogma and says this must be taken in a modified sense because a person can be united to the Church in some other way than the Church has defined. This point is to the Letter describing people like Bosco and LOT and all the rest. How much more plain does it have to be? The EENS' believers say this Dogma means exactly what it says because we believe it. The Liberal pelagians KNOW this teaching is infallible but do not believe this Dogma so they declare that it must be taken in a "modified sense" i.e. "as the Church understands it".