“We’ve opened up a new front on the war on terror. It’s an attack on the unique, the unorthodox, the unexpected; it’s a war on different. If you act different, you might find yourself investigated, questioned, and even arrested — even if you did nothing wrong, and had no intention of doing anything wrong… If you ask amateurs to act as front-line security personnel, you shouldn’t be surprised when you get amateur security.”
Bruce Schneier, from “The War on the Unexpected”, Schneier on Security [schneier.com]