Texas schools send parents DNA kits to identify their kids’ bodies in emergencies [nbcnews.com] via @nbcnews
That is not new idea. For years many schools have gotten fingerprints of kiddies. Not new, but higher tech, and more certain regardless of what is found of a missing kid.
Why not just DNA all newborns at birth. Build the database early? And even microchip them at the same time!