This article hypothesized that the possibility to construct intellectual meaning of a terrorist attack (i.e., whether participants can cognitively understand why the perpetrators did their crime) reduces the negative psychological consequences typically associated with increased terrorist threat. Concretely, the authors investigated the effect of intellectual meaning (induced by providing addit...

OF THE NUMEROUS BIOLOGIcal agents that may be used as weapons, the Working Group on Civilian Biodefense has identified a limited number of organisms that could cause disease and deaths in sufficient numbers to cripple a city or region. Anthrax is one of the most serious of these diseases. High hopes were once vested in the Biological Weapons and Toxins Convention, which prohibited offensive bio...

Arriving at a consensual definition of the phenomenon of terrorism has been a particularly difficult undertaking. Some definitions are either too specific or too vague, concentrating on some essential “terrorist” aspect of the actions, strategies, or types of non-state organizations that engage in terrorism. In this paper I draw on global approaches from international relations and world system...

This article evaluates state-sponsored terrorism as a principal-agent issue. More often applied to the study of licit national or international institutions as a way to improve their governance, we argue that applying principal-agent analysis to illicit relationships such as those between states and terrorist agents is an equally fruitful application, though one with different objectives. Rathe...

Cyberterrorism represents the convergence of the virtual world of cyberspace and the intimidation techniques of terrorism. To better understand why cyber terrorist acts are committed, this paper investigates the motivation behind terrorism by looking at traditional terrorist groups and how their objectives can be met by Information and Communication Technology (ICT). This paper addresses the re...

Highly lethal terrorist attacks, which we define as those killing 21 or more people, account for 50% of the total number of people killed in all terrorist attacks combined, yet comprise only 3.5% of terrorist attacks. Given the disproportionate influence of these incidents, uncovering systematic patterns in attacks that precede and anticipate these highly lethal attacks may be of value for unde...