Therefore a new system has been designed to be simple, easy to remember, and intuitive. Green for travel, red for public places, etc. Mapping by saturation, pink will indicate a low level of threat, red higher.
These will then be (subtractively) mixed to produce the final color coded terror threat level indication. Puce would indicate foo, ecru bar, and teal bazz. White indicates no expected threat. Black indicates all possible threats are expected everywhere, immediately.
After extensive analysis, it has been determined that a subset of all the possible colors will nicely cover all the likely combinations of risks. Looking at the chart, you can easily see that a status of `cerulean' means that you might want to avoid taking water-based transportation to Chad, Malta, Uruguay, or Mozambique. However, a visit to a national monument would entail little risk.
Note: colors are approximate and may not be correct, depending on browser and computer setup and capabilities.
Here is the optimized chart for everyday use. This will cover approximately 83% of expected conditions.