By the end of March 2020, all public schools in the United States were closed to slow the spread of the novel coronavirus SARS-CoV-2. More than 50.8 million children stayed home as school systems scrambled to transition to remote or hybrid learning platforms. While the decision to close schools was difficult, the debate over when and how to reopen…

The standardized, indicated school-based prevention program "Networks Against School Shootings" combines a threat assessment approach with a general model of prevention of emergency situations in schools through early intervention in student psychosocial crises and training teachers to recognize warning signs of targeted school violence.…