Homeland Security Presidential Directive 3

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DHS Ends Colour Coded Threat Advisory : Who Will Tell Me When To Panic?

Following the September 11 2001 terrorist attacks on the United States, the Homeland Security Presidential Directive 3 created the Homeland Security Advisory System on the 11th of March 2002.   The Homeland Security Advisory System is a familiar sight to many travelers, it is the colour coded threat level advisory chart posted in many airports and…

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