Thank you, Bob for your article.  There are definite gaps in how the system is suppose to work.  Schools need to report, period.  It is not their job to investigate.  Leave investigation to police and CPS.  Schools must assure parents and children that the environment is safe.  When a complaint of sex abuse is made against a teacher...it is automatic suspension with leave from the campus, and no contact with students.  Things get murky when schools try to render a judgement as to whether a complaint is credible or not, avoid calling in the police and end up protecting the teacher-employee over the safety of students.  

Despite criminal background checks that may not tell the whole story...we need to teach children boundaries (physical and emotional) from authority figures.  Authority figures never have the right to invade your personal space.  Parents need to be aware when  teachers or other authority figures give special attention that could be "grooming" for sexual abuse.