This text provides students with a practical introduction to the concepts, structure, politics, law, hazards, threats, and practices of homeland security everywhere, focusing on US "homeland security," Canadian "public safety," and European "domestic security." It is a conceptual and practical textbook, not a theoretical work. It is focused on the knowledge and skills that will allow the reader to understand how homeland security is and should be practiced. Globalization, population growth, migration, technology, aging infrastructure, and the simple trend to higher expectations are making homeland security more challenging. Yes, homeland security really is a global problem. The hyperconnectivity of today's world has reduced the capacity of the United States to act unilaterally or to solve homeland risks from within the borders alone. Newsome and Jarmon explain the relevant concepts, the structural authorities and responsibilities that policymakers struggle with and within which practitioners must work, the processes that practitioners and professionals choose between or are obliged to use, the actual activities, and the end-states and outputs of these activities. Moreover, this book presents the concept of homeland security as an evolving experience rather than an artifact of life since 2001. It is a profession that requires some forming from the ground up as well as the top down.

The first edition of The New Era in U.S. National Security relied upon both primary and secondary sources on national security, as well as the author’s first-hand knowledge. In addition to academic sources, chief executive officers of fortune 500 firms, experts on national security within and outside government, investment bankers, and experts in cybersecurity, transnational crime, supply chain logistics, and public policy were interviewed and quoted in the text. These same sources and their reassessments are available for the second edition. The topics covered in the book are emerging issues. Currently, the most reliable body of literature is the property of private entities and classified government documents, which are largely not available to students. By contrast, most course texts are readers that offer a selection of views on diverse but relevant topics, but most have a mere few chapters on new security challenges. Without an informative core text and reference guide, students have to rely upon these compendia, popular news articles, and electronic media for study and research. The second edition of The New Era offers students and instructors a whole cloth, insightful perspective on the dynamic, changing patterns and orientations unleashed by the processes of globalization, technology, and the emerging “Second Cold War” era.