Most historical accounts of the use of nonlethal weapons in the United States cite the Omnibus Crime Control and Safe Streets Act of 1968 as a turning point. The act established the Law Enforcement Assistance Administration (LEAA), a federal agency within the U.S. Department of Justice designed to assist state police forces across the nation in upgrading their riot control hardware and officer-training programs. The act also provided $12 billion in funding over a period of ten years. Police forces across America began upgrading their military-style equipment to include riot control systems, helicopters, grenade launchers, and machine guns. The LEAA famously gave birth to the special weapons and tactics concept, or SWAT, with the first units created in Los Angeles in the late 1960s. “These units,” says an LAPD historian, “provided security for police facilities during civil unrest.” But what has not been established before this book is that much of this equipment was researched and developed by ARPA in the jungles of Vietnam and Thailand during the Vietnam War.