With all the talk of disarming law-abiding citizens (to remove the likelihood of a crazed killer gaining access to one of America’s 300m+ firearms) and arming teachers and school administrators (to provide an on-the-spot defense against active shooters), not much has been said about hardening schools against armed aggressors. And no wonder. It’s a difficult and expensive process with no guarantee of success (e.g., Adam Lanza shot his way through a locked door at Sandy Hook Elementary School). But what about providing schools with a Baker Batshield? Huddling in a closet is not much of a defense strategy against an active shooter. Ipso facto. But doing so behind a Baker ballistic Batshield would have given 20 children a better chance at survival than . . . nothing. And even if the teacher holding the shield was unarmed, he or she could have rammed Lanza, giving kids a chance to escape. [Click here for our previous coverage.] A PatrolBat costs $2175. Worth it?