Question

In order to assess whether an event should be considered a national-level event, the Department of Homeland Security uses a ____ threshold

Answer 1

it goes by color

History of Homeland Security Advisory System (HSAS)

The national threat level has changed 17 times. It has consistently remained at Yellow (Elevated) or Orange (High) and was elevated to Red (Severe) once on Aug. 10, 2006. HSAS has never been lowered to Green (Low) or Blue (Guarded).

dhs