In 1999, just 19 percent of public schools reported using security cameras. By 2013, that number had increased to 75 percent. It is estimated that by 2018, schools will spend over $1.1 billion annually on security infrastructure, but the majority of these funds are being invested in video surveillance systems, which are used almost exclusively to analyze events after they have occurred, rather than preventing them happening in the first place.

So what can we do to protect our children? Learn more with Allegion US in this hands-on article.