Threat Level Orange

Whenever I drive by the airport, I see these signs. I started wondering... what is threat level orange?.



I thought perhaps since a red alert is bad, and a yellow alert is not as bad, and since the color orange is made from mixing yellow and red, that orange is somewhere in between. It turns out this was right! It seems from now on, we are on high alert.



The real information is on the other sign. "If I see suspicious activity... who do I call... Ghost Busters? No. Pizza Palace??? No... Oh yeah! That sign said to call 9-1-1!"