The Homeland Security Advisory System
The Homeland Security Advisory System is used to advise the public of changes in the threat level for possible terrorist attacks.
The color-coded system indicates probability of a terrorist attack:
- Green = Low
- Blue = Guarded
- Yellow = Elevated
- Orange = High
- Red = Severe
Also, the advisories are targeted for geographic regions and/or sectors such as mass transit, aviation, etc.
For the latest information on the Department of Homeland Security Advisory System, go to:www.dhs.gov