In the past two decades, mass shootings within the United States have become normalized and many, sadly, have grown desensitized. The Sandy Hook Elementary school shooting that took place on December 14, 2012, shook the nation. Now as the school has reopened in its new location, it offers the best protection technology could offer. These new achievements planned to be implemented in movie theaters, schools,  and various public targets. 

Article(Source): http://www.wsj.com/articles/using-technology-to-protect-from-mass-shootings-1473012905

Photo Source: By Bsrboy (Own work) [Public domain], via Wikimedia Commons