This is a decent introduction to the field of emergency management as of about 2005. This volume is pitched at a level for newcomers to the subject. One problem: Its positive evaluation of the current American system looks silly when one adds Hurricane Katrina (the book was published before the hurricane struck). Obviously, the system was not in the state described in this volume.
Nonetheless, this is a nice work. It begins with a general introduction, including a history of emergency management in the US. The second chapter makes a critical point--the importance of an all hazards approach. Emergency management is not just about responding to terrorists--it is also about response to national disasters. The chapter does a fine job at emphasizing this.
Then, subsequent chapters consider the key issues of mitigation, response, recovery, and preparedness. We can try to reduce the odds of disasters and their consequences--but we must also plan on how to respond if such events actually occur. There follow chapters on communication, international disaster management, responding to the new terrorist threat, and the future of emergency management.
This book is quite useful for those who want an introductory analysis to the subject. As such, it performs pretty well, despite its overly optimistic view of the state of the system, at the time the book was published (recall the miserable performance of FEMA with Hurricane Katrina).