Brilliant Brits

The Washington Post describes a British ploy to determine who was making the bombs in Northern Ireland.

The plan was simple: Build a laundry and staff it with locals and a few of their own. The laundry would then send out "color coded" special discount tickets, to the effect of "get two loads for the price of one," etc. The color coding was matched to specific streets and thus when someone brought in their laundry, it was easy to determine the general location from which a city map was coded.

It's good to have smart people working for you.