National Protection and Programs Directorate Office of Infrastructure Protection: Security of Soft Targets and Crowded Places - Resource Guide [open pdf - 5MB]
"Segments of our society are inherently open to the general public, and by nature of their purpose do not incorporate strict security measures. Given the increased emphasis by terrorists and other extremist actors to leverage less sophisticated methods to inflict harm in public areas, it is vital that the public and private sectors collaborate to enhance security of locations such as transportation centers, parks, restaurants, shopping centers, special event venues, and similar facilities. Securing these locations and venues is essential to preserving our way of life and sustaining the engine of our economy. The Office of Infrastructure Protection (IP), part of the U.S. Department of Homeland Security (DHS) National Protection and Programs Directorate (NPPD), is committed to improving the security and resilience of soft targets by providing relevant tools, training, and programs to both the public and private sectors, and the general public. This guide is a catalog of IP soft target resources, many of which were created in collaboration with our partners to ensure they are useful and reflective of the dynamic environment we live in."
Department of Homeland Security: https://www.dhs.gov/