Bakker, E. (2006). Jihadi terrorists in Europe, their characteristics and the circumstances in which they joined the Jihad. Clingendael Security Paper: Netherlands Institute of International Relations.
BBC News. (2001, May 29). What you need to know about Echelon, BBC News. Online at: http://news.bbc.co.uk/2/hi/sci/tech/1357513.stm.
Berger, J. M., & Morgan, J. (2015). The ISIS twitter census: Defining and describing the population of ISIS supporters on twitter, Brooking project on U.S. Relations with the Islamic World, Analysis Paper, 20.
Bjelopera, J. P. (2017, August 21). Domestic Terrorism: An Overview (pp. 3). Washington, DC: Congressional Research Service. Online at: https://fas.org/sgp/crs/terror/R44921.pdf.
Bloom, R. M., & Clark, W. T. (2016, Spring). Small Cells, Big Problems: the increasing precision of cell site location information and the need for fourth amendment protections. Journal of Criminal Law and Criminology 106(2). Online at: https://scholarlycommons.law.northwestern.edu/cgi/viewcontent.cgi?article=7583&context=jclc.
Brachman, J. (2009). Global Jihadism: Theory and practice (p. 2009). London: Routledge.
Chen, J., Hseih, G., Mahmud, J., & Nichols, J. (2014). Understanding Individuals’ Personal Values from Social Media Word Use. Values & Social Norms, CSCW 14, February 15–19.
Corner, E., & Gill, P. (2015). A false dichotomy? Mental illness and lone-actor terrorism. Law and Human Behaviour, 39, 23–34.
Deese, J. (1983). Thought into speech: Psychology of a language. Englewood Cliffs: Prentice-Hall.
Department of Justice Policy Guidance. (n.d.). Domestic use of unmanned aircraft systems https://www.justice.gov/file/441266/download;
Docobo, J. M. (2006). Protecting America’s communities from terrorism: A law enforcement perspective. In J. J. F. Forest (Ed.), Homeland security: Protecting America’s targets. Westport, CT: Praeger.
Dubrovsky, V. J., Kiesler, S., & Sethna, B. N. (1991). The equalization phenomenon: Status effects in computer- mediated and face-to-face decision-making groups. Human-Computer Interaction, 6, 119–146.
FBIs Counterterrorism and Forensic Science Research Unit (CFSRU), online at: http://www.fbi.gov/about-us/lab/scientific-analysis/counterterrorism-forensic-science-research.
Federal Bureau of Investigation. (2004, August 9). Strategic plan 2002–2009. Online at: http://www.fbi.gov/publications/strategicplan/stategicplantext.htm
Fernandes, R., Hatfield, J., & Soames Job, R. F. (2010). A systematic investigation of the differential predictors for speeding, drink-driving, driving while fatigued, and not wearing a seat belt, among young drivers. Transportation Research Part F: Traffic Psychology and Behaviour, 13(3), 179–196.
Forest, J. J. F. (2015). Introduction. In Essentials of counterterrorism (pp. 1–32). Westport: Praeger.
Friedersdorf, C. (2016, March 10). The rapid rise of federal surveillance drones over America. The Atlantic. Online at: https://www.theatlantic.com/politics/archive/2016/03/the-rapid-rise-of-federal-surveillance-drones-over-america/473136/.
Gallagher, R. (2015, November 18). From Paris to Boston, terrorists were already known to authorities. The Intercept. Retrieved via: https://theintercept.com/2015/11/18/terrorists-were-already-known-to-authorities/
Gautam, G., & Yadav, D. (2014). Sentiment analysis of twitter data using machine learning approaches and -semantic analysis. 2014 Seventh International Conference on Contemporary Computing (IC3), Noida, 2014, pp. 437–442.
Gelder, K. (2006). Epic fantasy and global terrorism. In E. Mathijs & M. Pomerance (Eds.), From hobbits to Hollywood: Essays on Peter Jackson’s Lord of the rings (pp. 101–118). Kenilworth: Rodopi.
Gill, P. (2013). Tipping point-the adoption of suicide bombings. Psicología Política, 46, 77–94.
Gill, P. (2015a). Toward a scientific approach to identifying and understanding indicators of radicalization and terrorist intent: Eight key problems. Educational Publishing Foundation, 2(3–4), 187.
Gill, P. (2015b). Lone actor terrorism: A Behavioral analysis. London: Routledge.
Gill, P., & Corner, E. (2013). Disaggregating terrorist offenders: Implications for research and practice. Criminology & Public Policy, 12(1), 93–101.
Gill, P., & Horgan, J. (2013). Who were the volunteers? The shifting sociological and operational profile of 1240 provisional Irish Republican Army members. Terrorism and Political Violence, 25(4), 435–456.
Gill, P., Horgan, J., & Deckert, P. (2014). Bombing alone: Tracing the motivations and antecedent behaviors of lone-actor terrorists. Journal of Forensic Sciences, 59(2), 425–435.
Gruenewald, J., Chermak, S., & Freilich, J. D. (2013a). Far-right lone wolf homicides in the United States. Studies in Conflict and Terrorism, 36, 1005–1024.
Gruenewald, J., Chermak, S., & Freilich, J. D. (2013b). Distinguishing ‘loner’ attacks from other domestic extremist violence: A comparison of far-right homicide incident and offender characteristics. Criminology & Public Policy, 12(1), 63–64.
Hoffman, B. (2006). Inside Terrorism (pp. 40–41). New York: Columbia University Press.
Horgan, J. (2013). The psychology of terrorism (2nd ed.). New York: Routledge.
Horgan, J., Shortland, N., Abbascianno, S., & Walsh, S. (2016). Actions speak louder than words: A behavioral analysis of 183 individual convicted of Terrorist Offenses in the United States from 1989–2012. Submitted to Journal of Forensic Sciences.
Horgan, J., Shortland, N. D., & Abbasciano, S. (2018). Towards a typology of terrorism involvement: A behavioral differentiation of violent extremist offenders. Journal of Threat Assessment and Management, 5(2), 84–102.
Intelligence and Security Committee of Parliament. (2014). Report on the intelligence relating to the murder of Fusilier Lee Rigby. United Kingdom. Online at: http://isc.independent.gov.uk/committee-reports/special-reports
International Association of Chiefs of Police. (2005, May 17). From hometown security to homeland security: IACP’s principles for a locally designed and nationally coordinated homeland security strategy. Online at http://www.theiacp.org/leg_policy/HomelandSecurityWP.PDF.
Kebbell, M. R., & Porter, L. (2011). An intelligence assessment framework for identifying individuals at risk of committing acts of violent extremism against the west. Security Journal, 25, 212–228.
Kelly, E. V. (2018, January 11). What is the Section 702 surveillance program and why should you care? USA Today. Online at: https://www.usatoday.com/story/news/politics/2018/01/11/what-section-702-surveillance-program-and-why-should-you-care/1025582001/.
Khader, M., Neo, L. S., Ong, G., Tan, E., & Chin, J. (Eds.). (2016). Countering violent extremism and radicalisation in the digital era. Hershey: IGI Global.
Kraft, M. (2015). The US Governments counterterrorism research and development programs. In J. J. F. Forest (Ed.), Essentials of counterterrorism (pp. 195–220). Westport: Praeger.
Kraft, M., & Marks, E. (2012). U.S. Government counterterrorism: A guide to who does what. Washington, DC: CTC Press.
Lankford, A. (2013). The myth of martyrdom: What really drives suicide bombers, rampage shooters, and other self-destructive killers. New York: Palgrave Macmillan.
Lum, C., Kennedy, L. W., et al. (2006) Are Counter-Terrorism Strategies Effective? The Results of the Campbell Systematic Review on Counter-Terrorism Evaluation Research, Journal of Experimental Criminology : 489–516.
Matney, L. (2015). Uncovering ECHELON: The Top-Secret NSA/GCHQ Program That Has Been Watching You Your Entire Life. TechCrunch (August 23). Online at: https://techcrunch.com/2015/08/03/uncovering-echelon-the-top-secret-nsa-program-that-has-been-watching-you-your-entire-life/.
McCabe, A., & Bliss, L. S. (2003). Personal narratives: Assessment and intervention. Perspectives on Language Learning and Education, 19(4), 130.
Meloy, J. R. (2011). Approaching and attacking public figures: A contemporary analysis of communications and behavior. In C. Chauvin (Ed.), Threatening communications and behavior: Perspectives on the pursuit of public figures (pp. 75–101). Washington, DC: National Academies Press.
Meloy, J. R., & Gill, P. (2016). The lone-actor terrorist and the TRAP-18. Journal of Threat Assessment and Management, 3(1), 37–52.
Meloy, J. R., & O’Toole, M. E. (2011). The concept of leakage in threat assessment. Behavioral Sciences & the Law, 29, 513–527. https://doi.org/10.1002/bsl.986.
Meloy, J. R., & Yakeley, J. (2014). The violent true believer as a “lone wolf”—Psychoanalytic perspectives on terrorism. Behavioral Sciences & the Law, 32, 347–365.
Office of the Director of National Intelligence. (2018). Statistical transparency report, calendar year 2017. Washington, DC: Office of Civil Liberties, Privacy and Transparency (May 4). Online at: https://www.dni.gov/files/documents/icotr/2018-ASTR%2D%2D%2D%2DCY2017%2D%2D%2D%2DFINAL-for-Release-5.4.18.pdf.
Pang, B., & Lee, L. (2008). Opinion mining and sentiment analysis. Foundations and Trends in Information Retrieval, 2(1–2), 1–135.
Pang, B., Lee, L., & Vaithyanathan, S. (2002). Thumbs up? Sentiment classification using machine learning techniques. In Proceedings of the Conference on Empirical Methods in Natural Language Processing.
Pennebaker, J. W., & King, L. A. (1999). Linguistic styles: Language use as an individual difference. Journal of Personality and Social Psychology, 77, 1296–1312.
Postmes, T., Spears, R., & Lea, M. (2002). Intergroup differentiation in computermediated communication: Effects of depersonalization. Group Dynamics, 6, 3–16.
Prentice, S., Rayson, P., & Taylor, P. J. (2012). The language of Islamic extremism: Towards an automated identification of beliefs, motivations and justifications. International Journal of Corpus Linguistics, 17(2), 259–286.
Prentice-Dunn, S., & Rogers, R. W. (1989). Deindividuation and the self-regulation of behavior. In P. B. Paulus (Ed.), The psychology of group influence (2nd ed., pp. 86–109). Hillsdale: Lawrence Erlbaum.
Pressman, D. E., & Flockton, J. (2014). Violent extremist risk assessment: Issues and application of the VERA-2 in a high–security correctional setting. In A. Silke (Ed.), Prisons, terrorism and extremism: Critical issues in management, radicalisation and reform (pp. 122–143). New York: Routledge.
Pressman, E. D., & Ivan, C. (2016). Internet use and violent extremism: A cyber-VERA risk assessment protocol. In M. Khader, L. S. Neo, G. Ong, E. Tan, & J. Chin (Eds.), Countering violent extremism and radicalisation in the digital era (pp. 391–409). Hershey: IGI Global.
Risen, J., & Lichtblau, E. (2005, December 16). Bush Lets U.S. Spy on Callers Without Courts. The New York Times. Online at: https://www.nytimes.com/2005/12/16/politics/bush-lets-us-spy-on-callers-without-courts.html
Roberts, K., & Horgan, J. (2008). Risk assessment and the terrorist. Perspectives on Terrorism, 2(6), 1–4.
Rosenau, W. (2014). The ‘first war on terrorism?’ – U.S. Domestic counterterrorism during the 1970s and early 1980s. Washington, DC: CNA Center for Strategic Studies (October).
Sageman, M. (2004). Understanding terror networks. Philadelphia: University of Philadelphia Press.
Sageman, M. (2014). The stagnation in terrorism research. Terrorism and Political Violence, 26, 565–580.
Sarma, K. M. (2017). Risk assessment and the prevention of radicalization from nonviolence into terrorism. American Psychologist, 72(3), 278–288.
Schmid, A. (2013). The Routledge handbook of terrorism research. New York: Taylor & Francis.
Schmid, A. P. (2014). Comments on Marc Sageman’s polemic “the stagnation in terrorism research”. Terrorism and Political Violence, 26(4), 587–595.
Schuurman, B. (2018). Research on terrorism, 2007–2016: A review of data, methods, and authorship. Terrorism and Political Violence, 1–16.
Silke, A. (2007). The impact of 9/11 on research on terrorism. In Mapping terrorism research (pp. 90–107). New York: Routledge.
Simcox, R., & Dyer, E. (2013). Al Qaeda in the United States: A complete analysis of terrorism offenses. London: The Henry Jackson Society.
Snyder, B., & Barzilay, R. (2007). Multiple aspect ranking using the good grief algorithm. in Proceedings of the Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies (NAACL/HLT-2007).
Stern, J. (2014). Response to Marc Sageman’s “the stagnation in terrorism research”. Terrorism and Political Violence, 26(4), 607–613.
Suler, J. (2004). The online disinhibition effect. Cyber Psychology and Behavior, 7, 321–326.
Sumner, C., Byers, A., Boochever, R., & Park, G. J. (2012). Predicting dark triad personality traits from Twitter usage and a linguistic analysis of tweets. 11th International Conference on Machine Learning and Applications (ICMLA), vol. 2. IEEE Press.
Talbot, D. (2005). Terror’s server. Technology Review. Retrieved from http://www.technologyreview.com/infotech/14150/.
Tausczik, Y. R., & Pennebaker, J. W. (2009). The psychological meaning of words: LIWC and computerized text analysis methods. Journal of Language and Social Psychology, 29(1), 24–54.
Taylor, M. (2014). If I were you, I wouldn’t start from here: Response to Marc Sageman’s “the stagnation in terrorism research”. Terrorism and Political Violence, 26(4), 581–586.
Thomas, M., Pang, B., & Lee, L. (2006). Get out the vote: Determining support or opposition from congressional floor-debate transcripts. Proceedings of the Conference on Empirical Methods in Natural Language Processing (EMNLP), pp. 327–335.
Wanner, L. (2019). Automatic classification and linguistic analysis of extremist online material. International Conference on Multimedia Modeling.
Webster Commission. (2012). Final Report of the William H. Webster Commission on Federal Bureau of Investigation, Counterterrorism Intelligence, and the Events at Ford Hood, Texas, on November 5, 2009. Online at: https://www.hsdl.org/?view&did=717443
Weimann, G. (2004). www.terror.net: How modern terrorism uses the internet. Special Report: United States Institute of Peace, 116, 1–12.
Weimann, G. (2006). Terror on the internet: The new arena, the new challenges. Washington, DC: United States Institute of Peace.
Yarkoni, T. (2010). Personality in 100,000 words: A large-scale analysis of personality and word use among bloggers. Journal of Research in Personality, 44, 363–373.
Zimbardo, P. G. (1969). The human choice: Individuation, reason, and order versus deindividuation, impulse, and chaos. Nebraska Symposium on Motivation, 17, 237–307.