Watch Out for Magenta Days
The White House is so happy with its new color-coded rankings for
warnings of terrorist threats — red for severe risk, blue for general risk
and so on — that plans are afoot to expand the system. Why stop at
a few colors — or one kind of risk? Americans need as much information
about potential dangers as they can get. Here's what a more complete
system looks like.
http://www.nytimes.com/2002/03/16/opinion/16MART.html