I figured it out!...It's so simple!...Don't know why it didn't come to me sooner!..A total can't-miss solution to all the school shootings!.... BAN GUBMINT SCHOOLS! That's where all the school shootings have been occurring, so it only makes sense! And after that, in the market-based schools that will take their place, ban all "high capacity classrooms", so that if lunatic gets into the school with a bomb or a machete or a sack full of pointy sticks, we can minimize the loss of life! How did we all miss such an obvious solution to the problem?!?!?!??