The US Department of Homeland Security reports the National Terrorism Advisory System to communicate the risk of a terrorist attack.
|
Risk Level
|
Risk Color
|
Risk for Terrorist Attack
|
|
severe
|
red
|
severe (very high)
|
|
high
|
orange
|
high
|
|
elevated
|
yellow
|
significant
|
|
guarded
|
blue
|
general
|
|
low
|
green
|
low
|
As the risk of a terrorist attack increases there should be an increase in steps taken to prevent and to mitigate the attack.
