In 2005, DHS launched HSIN-Critical Sectors (CS) to communicate real-time information to critical infrastructure owners and operators. The mission of the HSIN-CS program is to ensure the protection and reliable performance of the nation's CI/KR sectors through the strategic use of information sharing and communication capabilities. Additionally, HSIN creates an enhanced partnership between the owners and operators of the nation's critical infrastructures, DHS and the Sector-Specific Agencies (SSAs). Through HSIN-CS, participating users receive the following functionality: timely broadcast alerts, threats, warnings, and incident reporting; sharing critical documents and analyses; real-time collaboration on key issues or crises; support best practices and protective strategies and the growth of communities of interest. (DHS, Pandemic Influenza CIKR Guide, 2006, p. 69)