The term network is widely used across the field of security. For example, in light of the strengths of crime and terror networks (so-called dark networks), it has become popular to argue that “it takes networks to fight networks.” Network in this context is used more as a metaphor rather than other uses of the term, including referring to a method of analysis, a mode of organizing, or technological assemblage. A network is a descriptive concept that loosely refers to a set of relationships among security agencies or nodes. The term also has a prescriptive connotation; for example, in the field of national security, the term calls attention to the lessons identified in the 9/11 Commission Report and related inquiries concerning the extent to which ...