In today’s world, the security professional is faced with the daunting task of designing, developing, and implementing measures to counter an increasingly broad, though still somewhat vague, spectrum of threats. Law enforcement and government agencies continue to release a barrage of alerts and warnings about possible terrorist operations against US and Western interests both within the US and abroad. It seems that every warning is accompanied by the usual caveats about no credible information, no specific targets, and no specific timing or methods of attack. In fact, more often than not these warnings have been disseminated to the private sector through the media long before any official notification has been forthcoming. Developing an effective protection strategy under these circumstances can be, to say the least, taxing.