advent of methods and tools for network analysis has brought about a paradigm in the way we examine data concerning terrorists, terrorist organizations and violent non ‐ state actors in general. Relational data such as individual contacts, group membership, transactions, telephone calls, and web site links all provide information about social structure for the study of terrorism, political extremism, and violence. indeed, the examination of terrorist networks has emerged as a prominent field of study in recent years 2004; 2008; and Christensen,