Homeland Security

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The National Terrorism Advisory System, or NTAS, replaces the color-coded Homeland Security Advisory System (HSAS). This new system will more effectively communicate information about terrorist threats by providing timely, detailed information to the public, government agencies, first responders, airports and other transportation hubs, and the private sector.

It recognizes that Americans all share responsibility for the nation's security, and should always be aware of the heightened risk of terrorist attack in the United States and what they should do.
Homeland Security Information


Illinois Homeland Security
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The Homeland Security Advisory System is a means to disseminate information regarding the
risk of terrorist acts to federal, state, and local authorities and to the American people.