https://www.acacamps.org/article/campline/what-if-it-does-happen-camp-security-%E2%80%93-plans-make-actions-take

In July 2011, Anders Brevik detonated a "car bomb," killing eight people in the Parliament Building in Oslo, Norway. He then proceeded to shoot and kill 69 participants at the Workers Youth League...

https://www.acacamps.org/article/camping-magazine/building-safety-first-culture-camp

During my years as a camp director, safety became more than a set of rules or a checklist; it evolved into a daily practice with my entire team, embedded in everything from early morning activity...