Emergencies such as terror attacks, natural disasters, and fires often reveal problems in communication, information sharing, and notification. One of the key reasons for this is the lack of a systematic framework for developing security and emergency preparedness communication plans and information sharing protocols. This book provides professionals with the knowledge needed to systematically analyze information sharing needs and plan critical information flow and communications. Combining a conceptual framework with case studies, the text offers managers guidance for managing risk through advanced planning of the information flow within and between organizations.