“The offerings are numerous: automatically locking doors, bullet-resistant tables, Kevlar backpacks, artificial intelligence that detects guns and countless types of training exercises, like breathing techniques to avoid panic during an attack or strategies for how to use a pencil to pierce a shooter’s eyes.” The sane response to endless school and workplace mass killings would be to address the deadly tools that enable them. In America, the response is a rise of businesses designed to teach teachers and other workers how to protect themselves. Do these methods work? The only way to find out is to swipe your credit card and wait. NYT (free article): In a Violent America, Safety Becomes a Sales Pitch.