Ever since Tom Ridge abused that system during the Bush re-election, has anyone bothered to pay attention? And besides, as is mentioned inside, it was only about fear and it never translated into different action for travelers.
The Department of Homeland Security is planning to get rid of the color-coded terrorism alert system. Known officially as the Homeland Security Advisory System, the five-color scheme was introduced by the Bush administration in March 2002.
Red, the highest level, meant “severe risk of terrorist attacks.” The lowest level, green, meant “low risk of terrorist attacks.” Between those were blue (guarded risk), yellow (significant) and orange (high).