"The system was created by Presidential Directive 3 six months after the terror attacks of September 11, 2001, to provide a \"comprehensive and effective means to disseminate information regarding the risk of terrorist acts to Federal, State, and local authorities and to the American people.\" It was unveiled March 12, 2002, by Tom Ridge, then the Assistant to the President for Homeland Security, but responsibility for developing, implementing and managing the system was given to the U.S. Attorney General. In January 2003, the new Department of Homeland Security began administering the system. The decision to publicly announce threat conditions is made by the Secretary of Homeland Security in consultation with the Assistant to the President for Homeland Security, according to Homeland Security Presidential Directive-5."@en . "The system was created by Presidential Directive 3 six months after the terror attacks of September 11, 2001, to provide a \"comprehensive and effective means to disseminate information regarding the risk of terrorist acts to Federal, State, and local authorities and to the American people.\" It was unveiled March 12, 2002, by Tom Ridge, then the Assistant to the President for Homeland Security, but responsibility for developing, implementing and managing the system was given to the U.S. Attorney General."@en . . "On March 11, 2002, President Bush unveiled the Homeland Security Advisory System (HSAS) as a tool to improve coordination and communication among all levels of government, the private sector, and the American public in the fight against terrorism. The HSAS is designed to guide the DHS protective measures when specific information to a particular sector or geographic region is received. It combines threat information with vulnerability assessments and provides communications to public safety officials and the public. \n* Homeland Security Threat Advisories contain actionable information about an incident involving, or a threat targeting, critical national networks or infrastructures or key assets. \n* Homeland Security Information Bulletins communicate information of interest to the nation\u2019s critical infrastructures that do not meet the timeliness, specificity, or significance thresholds of warning messages. \n* Color-coded Threat Level System is used to communicate with public safety officials and the public at-large through a threat-based, color-coded system so that protective measures can be implemented to reduce the likelihood or impact of an attack. This system was established in Homeland Security Presidential Directive 3."@en . . . . "Homeland Security Advisory System"@en . . "On March 11, 2002, President Bush unveiled the Homeland Security Advisory System (HSAS) as a tool to improve coordination and communication among all levels of government, the private sector, and the American public in the fight against terrorism. The HSAS is designed to guide the DHS protective measures when specific information to a particular sector or geographic region is received. It combines threat information with vulnerability assessments and provides communications to public safety officials and the public. This system was established in Homeland Security Presidential Directive 3."@en . . . . .