ABSTRACT
HISTORIC ROOTS Terrorism is an act with deep historic roots, and one that has evolved, like the individuals, groups, and systems that commit it, over time. The fundamental characteristics of a terrorist act have not, perhaps, changed, but the associated tactics, targets, weapons, support systems, and even motivations have substantially changed in recent years. Understanding that this phenomenon has been a part of human history for centuries is useful as long as it is balanced with an awareness that, while the basic elements identifying the act as “terrorism” remain the same over time, the act itself continues to evolve in sometimes startling and often challenging ways.
