Schools are spending billions on high-tech security. But are students any safer?

The uncertainty over how to prevent school shootings — and the horrifying consequences of failing to do so — has created a business opportunity. School districts trying to avoid becoming next on the list are urgently chasing answers, with an increasing number staking their hopes on high-tech security systems originally developed for the military, police and private industry.

These modern tools range from instant background checks for visitors and social-media monitoring software to gunshot-detection sensors and ID cards equipped with panic buttons. They’re driving a rapidly growing school security market, which has ballooned to a multibillion-dollar industry — despite little proof that the new methods prevent violence.

Read the full article here…