Introduction Information concerning the potential whereabouts and activities of terrorists can be extrapolated from the massive amount of intelligence reported daily to US intelligence agencies. The events encapsulated in these reports, and, in particular, the sequence of these events, can be used to probabilistically infer the activities of terrorists. In this chapter, we are particularly inte...

Who Is the Enemy? We examine who benefits when there is a strong leader in place, and those who benefit when a situation lacks a proper leader. There are fractious terrorist groups who seek to serve the same people in common cause against a common enemy. The groups compete for rents obtained from the public by engaging in actions against the common enemy. We derive a condition under which the c...

We appreciate the opportunity to speak with you today about mass transit safety and security in the United States. Over a year has passed since the terrorist attacks of September 11, 2001, realigned our national priorities. While most of the early attention following the September 11 terrorist attacks focused on airport security, emphasis on the other modes of transportation has since grown. Mo...

Knowledge about the structure and organization of terrorist networks is important for both terrorism investigation and the development of effective strategies to prevent terrorists’ attacks. However, except for network visualization, terrorist network analysis remains primarily a manual process. Existing tools do not provide advanced structural analysis techniques that allow extraction of netwo...

I study how a variety of structural and strategic factors affect terroristmobilization, the likelihood of a splinter faction forming, and the positions adopted by terrorist leaders. The factors considered include the state of the economy, the viability of institutions for the nonviolent expression of grievance, the ability of the factional leaders to provide nonideological benefits, and the ris...

The Internet which has enabled global businesses to flourish has become the very same channel for mushrooming ‘terrorist news networks.’ Terrorist organizations and their sympathizers have found a cost-effective resource to advance their courses by posting high-impact Websites with short shelf-lives. Because of their evanescent nature, terrorism research communities require unrestrained access ...

I present a model of the interaction between a government, a terrorist organization, and potential terrorist volunteers in which, as a result of an endogenous choice, individuals with low ability or little education are most likely to volunteer to join the terrorist organization. However, the terrorist organization screens the volunteers for quality. Consequently, the model is consistent with t...

Participants reconstructed the serial order of events associated with the terrorist attacks of September 11, 2001. Accuracy was stable as the retention interval doubled from 9 weeks to 18 weeks, but most participants (63%) made errors sequencing even the ‘unforgettable’ events of that day, with most errors (72%) falling within one position of being correct. This positional gradient (near misses...

Listening experiences provide valuable insights in understanding the meaning of events and shaping way we remember them afterwards. builds relationships with places subjectivities. What kinds connections are built through listening during an event extreme violence, such as a terrorist attack? This article examines between sound, space, affect acoustemology Bataclan survivors’ sensory both attac...