Understanding Homeland Security: Policy, Perspectives, and Paradoxes provides the first truly comprehensive analysis of the historical, social, psychological, technological, and political aspects that form the broad arena of homeland defense and security.  Utilizing an interdisciplinary approach, the text provides a view of past events and how they formed the terrain for current events, allowing the audience to gain a detailed knowledge of government response and policy implications.  With both the public and private sectors investing heavily in protection efforts, this text offers the essential starting point for the dynamic and emerging homeland defense arena.