A tracing of the $3 billion active shooter preparedness industry in the United States and its effect on students and educators. A tracing of the $3 billion active shooter preparedness industry in the United States and its effect on students and educators.详情
Colas Quignard,Suzanne Gerin,Mitia Capellier-Audat,安东尼娅·布雷西,Rouge Isaac,Hadya Fofana,Lou-Anne Le Glorennec,Chamathka Warahena,Chérazade Hammedi,Camille Ménard-Harnisch,Gustave Tersiguel,Mathéo De Carl