The United States has experienced and remains vulnerable to many events that cause large numbers of casualties. The tragic events of September 11, 2001, and the subsequent anthrax exposures and deaths also awakened the nation to the threat of homeland terrorist attacks. As the United States began to enhance counterterrorism measures in response to the homeland terrorist attacks of September 11,...

This article analyzes the sociodemographic network characteristics and antecedent behaviors of 119 lone-actor terrorists. This marks a departure from existing analyses by largely focusing upon behavioral aspects of each offender. This article also examines whether lone-actor terrorists differ based on their ideologies or network connectivity. The analysis leads to seven conclusions. There was n...

This paper examines the phenomenon of organizing global terrorism. Based on the emerging perspective to understand communication as constitutive of organization (CCO), we reconceptualize terrorist organizations as essentially consisting of communicative events. At this, CCO allows for studying the emergence, stabilization, and destabilization of terrorist organizing.

Terrorist events, such as suicide bombings, are frightening, destructive, and rare. The nature of suicide bombings and improved explosive device (IED) attacks makes effective defensive measures difficult with the result that defensive actions typically impose greater restrictions on the larger population. Predicting the locations of terrorist events can enable more directed defensive efforts. W...

Many domains are best described as an affiliation network in which there are entities such as actors, events and organizations linked together in a variety of relationships. Relational classification in these domains requires the collective classification of both entities and relationships. In this paper, we investigate the use of relational Markov networks (RMN) for relational classification i...

Governments around the world are uniting in trying to defeat terrorist movements. In this context, recent counter terrorism laws in the UK place public duties on all citizens to help prevent terrorism. Yet, the science of predicting rare events such as terrorist offending yields consistently poor results. There are ethical, clinical and scientific dilemmas facing the professions if we are to in...

Terror events can cause profound consequences for the whole society. Finding out the regularity of terrorist attacks has important meaning for the global counter-terrorism strategy. In the present study, we demonstrate a novel method using relatively popular and robust machine learning methods to simulate the risk of terrorist attacks at a global scale based on multiple resources, long time ser...

Disasters, natural and man-made, have a considerable impact on communities. Most recently, disasters stemming from terrorist attacks have become a leading cause of concern. The importance of work in the lives of employees, coupled with the vulnerability of workplaces as potential targets of terrorist attacks, suggests that workplaces can and should play a role in planning for, and responding to...