The unfortunate reality is that security gimmicks won't keep children safe at school. It would
simply accelerate the evolution of this society's school-massacre
paradigm. Realistically, the net result would be to make more children less-safe,
faster. Anyone can break through bulletproofing (especially, but not
just glass) with $30 and a visit to a hardware store - or, with the same
budget, cook up a nice IED, or enough poison gas to fill a school, etc
etc.
A fundamental truth of security is that preparation supersedes the incidental. Anyone who resolves to kill a ton of people can find a way around incidental obstacles just by knowing they exist ahead of time. The bottom line is that there's no way to keep anyone safe as long as there are people willing to do whatever it takes to kill them, and that's regardless of how many easy options are or aren't available to do so. Guns, for instance, aren't even close to the most efficient way of killing a lot of people right now - they're just one of the most visible thanks to popular media, and thus the most immediate option given the general population's non-existent attention span. We are lucky that murderers are still using guns, frankly. When that changes—and it will, if social trends continue—so will the methodology, along with the scale of the body count.
No matter how much or how comprehensive physical and technological security is or becomes, the only way to truly prevent crime is to balance the social expression whose inevitable remainder is always crime. Crime is just a social waste product that a majority of people are either too dumb or too greedy to recycle properly before it gets out of hand.
A fundamental truth of security is that preparation supersedes the incidental. Anyone who resolves to kill a ton of people can find a way around incidental obstacles just by knowing they exist ahead of time. The bottom line is that there's no way to keep anyone safe as long as there are people willing to do whatever it takes to kill them, and that's regardless of how many easy options are or aren't available to do so. Guns, for instance, aren't even close to the most efficient way of killing a lot of people right now - they're just one of the most visible thanks to popular media, and thus the most immediate option given the general population's non-existent attention span. We are lucky that murderers are still using guns, frankly. When that changes—and it will, if social trends continue—so will the methodology, along with the scale of the body count.
No matter how much or how comprehensive physical and technological security is or becomes, the only way to truly prevent crime is to balance the social expression whose inevitable remainder is always crime. Crime is just a social waste product that a majority of people are either too dumb or too greedy to recycle properly before it gets out of hand.
... But that process is neither simple, nor profitable. So. *shrug*
