How the Columbine Shooting Changed American Teenhood
theatlantic.com
theatlantic.com
My admittedly cynical suspicion is that this has more to do with a shift in gun control strategy and less to do with safety. In the 90s, pre-Heller, gun control efforts mostly focused on handguns using the threat of street crime. With crime rates way down and handgun bans nonviable, gun control efforts have shifted to focus on semi-auto rifles using the threat of mass shootings. Lockdown drills keep children and parents fearful, which encourages voters to support gun control, even though mass shootings are statistically quite rare.