From the document: "'Report on Indicators of School Crime and Safety: 2021' provides the most recent national indicators on school crime and safety. The information presented in this report serves as a reference for policymakers and practitioners so that they can develop effective programs and policies aimed at violence and school crime prevention. [...] This report covers a variety of topics on school crime and safety. It first examines different types of student victimization, including violent deaths and school shootings, nonfatal criminal victimization, and bullying victimization. Then, the report presents data on measures of school conditions--such as discipline problems, gangs, hate-related speech, possession of weapons, and use and availability of illegal drugs--as well as data that reflect student perceptions about their personal safety at school. This report wraps up the discussion on crime and safety issues at the elementary and secondary level by examining the percentages of teachers who reported having been threatened or attacked by their students."