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. As of: Oct 12, 2005 •  Low = Green •  Guarded = Blue •  Elevated = Yellow •  High = Orange •  Severe = Red For individuals interested in actions they may take in response to the increased level of threat of terrorist attack: See the Citizen Preparedness Guide or visit the American Red Cross