My I ask, what is so different between "clerical culture" and other culture? How many 30-40 year old cases do you see prosecuted in, for example, the public school system, where even today -- according to published studies --- 8-10% of students will experience sexual abuse by staff? And there are many other institutions, we could bring up. And why is there no public outrage, wall to wall reporting on this? Would you consider this cover up? If no, why not?

BY NO MEANS do I consider this an excuse. I am simply asking to be realistic and even handed. 

It is not they who speak infallibly. They are not infallible. The Church is, and the office that appropriately represents the Church, is infallible DESPITE the individual cleric. This, I suggest is an important distinction.