Mass Attacks in Public Spaces: 2016 – 2020. National Threat Assessment Center (NTAC). U.S. Secret Service U.S. Department of Homeland Security January 2023. “…The 173 attacks contained in this report impacted a variety of locations, including businesses/workplaces, schools, houses of worship, military bases, nonprofit service providers, residential complexes, public transportation, and open spaces. In many… Continue Reading