In 2004 he published Profiles in Terror: A Guide to Middle East Terrorist Organizations.
[1] In 2014 he completed a doctorate in Public Policy at the University of Maryland with a dissertation entitled "The Evolving National Security Role of the Vice President".
[4][5] From 2004 to 2007, he worked on semantic web analysis of terrorism-related issues at the Information and Network Dynamics Laboratory of the University of Maryland.
A 2008 article in the Journal of International Policy Solutions, "Testing the Snake Head Strategy: Does Killing or Capturing its Leaders Reduce a Terrorist Group's Activity?"
has been cited as one of several quantitative studies in the first decade of the 21st century casting doubt on the usefulness of leadership decapitation as a counter-terrorism tactic.