A seventh requirement of incident management consists of the various multi-agency coordination centers that exist throughout all levels of government. They are essential to maintaining situational awareness and overall incident management, and they assist in the flow of information, the reporting of actions and activities, and ultimately the development of a common operating picture, but they also are hubs for coordinating operational activities during an incident. Examples include State, local, and Tribal emergency operations centers; State, local, and Tribal fusion centers; the National Operations Center, National Infrastructure Coordination Center, and the Federal Emergency Management Agency's National Response Coordination Center (all part of the Department of Homeland Security); the Federal Bureau of Investigation's Strategic Information and Operations Center and National Joint Terrorist Task Force (both part of the Department of Justice); and the National Counterterrorism Center (part of the Office of the Director of National Intelligence). (White House, National Strategy for Homeland Security, HSC, October 2007, pp. 47-48)