"This manual is designed to describe the systems in place to deal with domestic emergencies and a complete understanding of the military role in disaster response. The Chapter on Weapons of Mass Destruction Response provides information on the evolving system for dealing with WMD incidents. The WMD chapter is designed to build on the information in Chapter 2. Understanding the system for disaster response is key to understanding the special modifications to that system for WMD. This manual will also serve as a reference handbook for anyone involved with Military Assistance to Civil Authorities. This handbook is a compilation of material from many sources, distilled into easily understood text, charts, and figures. It highlights current key MACA procedures and issues, ongoing developments, and points of departure for discussion of critical issues."