Incidents, similar, elsewhere in society, are allegations of failures of people, policies, training, human factors, not of security hardware or equipment. i've been a witness in the nation's highest profile mass shootings and have yet to see that the allegations of failures go back to anything other than the human factor. parents understandably want something visible, tangible to point to to say schools are safer. administrators want to point to things as well to appease the community and release those tensions and stress. but if it doesn't really address the underlying problem, it's security ...