Since 9/11, the U.S. government and the private sector have devised sophisticated ways of protecting people and assets. The threats have evolved, however, becoming more insidious. They no longer comprise just terrorists who target critical infrastructures. They also include insider threats, such as PFC Manning and NSA contractor Snowden who leaked classified defense information, active shooter incidents like the Sandy Hook Elementary School massacre, and the 2013 Boston Marathon terrorist bombing. These events make it imperative for the public and private sectors to engage in effective partnership to protect people, facilities, and national infrastructure assets. Homeland Security and Private Sector Business: Corporations' Role in Critical Infrastructure Protection, Second Edition identifies the role the private sector plays in securing our homeland and offers strategies to aid in the fight against national and international threats. Addressing mandates and legislation introduced since the first edition, this new edition includes: Updates to the NIPP (National Infrastructure Protection Plan) New case studies of both proper security policies and procedures in practice versus costly security breaches Greater focus on smaller business and practical "immediate use" guidance New measures for assessing and addressing vulnerabilities and threats New appendices with sample plans and practical checklists Supplying tools that can easily be adapted and applied to every business situation at all budget levels, the book helps businesses counter the total threat, from traditional terrorists to inside betrayers-providing a clear blueprint for securing people and assets.