Once just a phenomenon, mass shootings have sadly become common worldwide. Among the headlines were incidents at a youth camp on the island of Utoya in Norway in 2011; two consecutive terrorist attacks on mosques in Christchurch, New Zealand, in 2019 and the teenager who opened fire at his high school in southeastern France in 2017.
Because active shooter situations can happen anywhere, are unpredictable, evolve quickly and are often over (within 10 to 15 minutes) before law enforcement arrives, mental and physical preparation is vital.