Dissertation
Understanding continuity and change in US counterterrorism policy through policymaker profiles
Has there been continuity or change in US counterterrorism policy since 9/11? What factors led to the continuity or change, and how do we classify any such continuity or change?
- Author
- Alexander Gallo
- Date
- 27 February 2024
- Links
- Full text in Scholarly Publications Leiden University

The terrorist attacks of September 11th, 2001 represent a seminal event in American history, catalyzing a 20-year period in which counterterrorism was the top priority for US national security. Yet, our understanding of US counterterrorism policy and the factors driving its evolution remains varied and unclear.In this dissertation, two dimensions of policy perspective and mode of thinking are integrated into a framework called the Policy Profile Code (PPC), a model that helps us understand the options policymakers have when confronted with crisis. Through the PPC, we metaphorically named the profiles of a policymaker: The Commander, The Prosecutor, The Negotiator, and The Doctor. When applying the PPC to each US presidential administration (Bush, Obama, and Trump) across the 20-year period following 9/11, we find overall change in US counterterrorism policy that included an evolution from The Commander, to The Prosecutor, to The Negotiator. We also find The Doctor policy profile was not adopted during this period.