Textbook provides overview of historic and current homeland security reorganization, case studies, best practices, and policies and programs related to the Homeland Security Act of 2002 and to the Department of Homeland Security. Recounts government and private sector actions taken in the aftermath of 9/11 in the areas of legislation, government organization, communications, technology, and emergency management practices. Includes lists of State Emergency Management offices, Homeland Security grantees, and web-based resources.