Nearly all school shooters are current or former students already familiar with the building. So locking doors may actually trap potential victims with the attacker. A criminal justice scholar explains why schools need to focus on noticing warning signs instead.

The Conversation

School shootings dropped in 2025 - but schools are still focusing too much on safety technology instead of prevention

Prevention methods like lockdown drills do not account for many scenarios, including the likely case that a school shooter is a former or current s...