"The U.S. Department of Homeland Security's (DHS) National Cyber Security Division (NCSD) successfully executed Cyber Storm, the first national cyber exercise Feb. 6 thru Feb. 10, 2006. The exercise was the first government-led, full-scale cyber security exercise of its kind. NCSD, a division within the department's Preparedness Directorate, provides the federal government with a centralized cyber security coordination and preparedness function called for in the National Strategy for Homeland Security, the National Strategy to Secure Cyberspace and Homeland Security Presidential Directive 7. NCSD is the focal point for the federal government's interaction with state and local government, the private sector and the international community concerning cyberspace vulnerability reduction efforts."
Dept. of Homeland Security: http://www.dhs.gov/