The document discusses emergency public information and joint information centers. It describes how a joint information system allows different organizations to work together to get the right information to the right people at the right time. A joint information center provides consistent messaging, information sharing, and coordinated delivery of messages to the public and media. The document outlines the structure of a joint information center and stresses the importance of building trust with the public during a crisis through competence, honesty, listening, and caring. It describes the role of public information officers in informing the public and acting as an intermediary between agencies and the public.