The federal government should aid in the creation of an educating and regulating agency to certify armed school personel

It is a basic American value that volunteers should be allowed great responsibility when properly organized.
With this understanding people whom would be willing to subject them self's to regular psychological examination and through background checks. Should be after meeting all qualifications required to employ firearms as a preventive shield of last resource, be certified.
This certification effective as a biannual screening processes done at the cost of the individual.
This permission should only be allowed in a discreet and concealed manner known only to the individual and to the governing agency and a qualified supervisor.
At any time that evidence would suffice to question the integrity of any licensed individual, they should undergo review.
This done only if the state be willing.