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With each new school shooting — the latest left 10 dead Friday in Santa Fe, Texas — the routine of death and grief grows numbingly familiar, and so does the inescapable question: Is there any way for schools to stop them?

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.

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Image: Security cameras keeps watch at Shawnee Mission West High SchoolOne of more than 100 security cameras keeps watch during a class change at Shawnee Mission West High School, in Shawnee Mission, Kansas, on April 23, 2018.Colin E. Braley / for NBC News

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Click link below for article and video:

https://www.nbcnews.com/news/us-news/schools-are-spending-billions-high-tech-security-are-students-any-n875611

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