Not to minimize the victims of priests and teachers in the Catholic church, but its tiny scandal, compared with amount of abuse that public school teachers have committed against students. Nearly everyone attends public school at some point but not everyone is Catholic.
But we don't hear about it nationally like we do with the Catholic church, because the press is protecting union members at all costs. You only hear about the local victims, and if my area is any indication, its a huge problem nationwide. I can think of at least ten crimes in the last year alone locally.