If they were investigating the public schools like they should, they'd find the public schools make the Catholic Church scandal look like Sesame Street.
The teachers union has it set up where teachers are exempt from any back ground checks. No one knows what kind of kook is teaching their children, or what that kook is teaching them.
Public schools are liberal indoctrination centers, where anything is acceptable, no matter how vile it may be.
You have the dominant media CELEBRATING a teacher who had sex repeatedly with a minor student. Entertainment Tonight is covering the wedding exclusively.
What state are you in?
In my state, teachers must have a criminal background check when they are hired - and their employment is provisional until those results are in. Another background check is required at least every 5 years, when teaching certificates are renewed.