Evan Wright, author of the excellent book "Generation Kill" participated in the TRC Mirror Image training program and wrote a feature article on it for the New York Magazine. 

Developed in 2002 by the Virginia-based consulting group Terrorism Research Center (TRC), the Mirror Image program is the first of its kind in the war on terror. It’s also one of the few counterterrorism courses designed for street cops, soldiers, and federal agents alike. “In this conflict, there’s a blurring of front lines,” explains Walter Purdy, a former Marine and vice-president of TRC. “Beat cops in American cities and U.S. soldiers in Fallujah could easily be up against people who share the same ideology, habits, culture, and tactics. Our goal is to immerse our students in the mind-set of that enemy.Full Story