** Paperback - 70 Pages - Printed in Full Color ** MASS ATTACKS IN PUBLIC SPACES: 2016 - 2020 Published 2023 United States Secret Service NATIONAL THREAT ASSESSMENT CENTER This is an extremely valuable, eye-opening look at the threat assessments of 173 different events. This report provides solid direction and specific suggestions on how to identify threats ahead of time and to take action prior to allowing an event to unfold. From the Director: For...