Let's talk about the school employment screenings, since I have mentioned being glad that the county is looking out for the safety of my children as well as everyone else's....So these screenings, are they 100% foolproof? Meaning, have they completely eliminated ALL incidents of abuse by teachers in our county?
Well, let's look at the first thing google came up with (though there were several more) http://articles.orlandosentinel.com/keyword/school-teacher
But...you protest....they were screened!
Yeah, they were screened, and deemed to be acceptable to allow around children because nothing came up on their background check.
Screening only prevents employment of people that have been caught for their offenses in the past. Screening volunteers as employees isn't going to magically make this screening more effective, but it does decrease the amount of parental involvement that a school can receive by banishing certain parents from helping out during most events.