A Department of Homeland Security Emeritus Center of Excellence led by the University of Maryland

Terrorism Databases and Resources


Terrorism Databases and Resources

Project Titlesort ascending Investigators Project Period
Using Global Terrorism Data to Model Counterterrorism Policies in Sri Lanka Gary LaFree, Sue-Ming Yang July, 2010 to December, 2011
United States Extremist Crime Database (ECDB), 1990-2010 Joshua Freilich, Roberta Belli, Steven Chermak June, 2008 to October, 2011
Unifying Approaches to Adversarial Modeling H. Brinton Milward, Ronald Breiger July, 2015 to December, 2017
Two to Tango: Government and Terrorist Group Actions in Colombia Barnett S. Koven March, 2018 to June, 2018
The Terrorism and Extremist Violence in the United States (TEVUS) Database Gary LaFree, Brent Smith, Joshua Freilich, Steven Chermak, Erin Miller, William Braniff, Kathleen Smarick March, 2009 to September, 2019
The Arctic All-Hazards GIS Platform Marcus A. Boyd September, 2018 to June, 2019
Terrorist and Extremist Organizations (TEO) Database Jonathan Wilkenfeld, R. Karl Rethemeyer July, 2012 to December, 2016
Social, Behavioral, Cultural, and Economic (SBCE) Impacts on Terrorist Activity Gary LaFree, Laura Dugan, Erin Miller July, 2012 to December, 2017
Shifting Terrorism Trends Across Time and Space Susan Cutter June, 2005
Resources and Resilience: A Computational Model of Strategic Influence January, 2018 to June, 2018
Program to Prepare Communities for Complex Coordinated Terrorist Attacks Erin Miller October, 2017 to August, 2019
Profiling the CB Adversary: Motivation, Psychology and Decision Gary Ackerman April, 2016 to December, 2017
Profiles of Incidents Involving CBRN and Non-state Actors (POICN) Database Markus Binder March, 2010 to June, 2018
Predisposing Root Causes of Terrorism Gary LaFree June, 2005 to June, 2009
Patterns of U.S. Extremist Crime Jeff Gruenewald, Joshua Freilich, Steven Chermak, William Parkin July, 2012 to December, 2017
Open-Source Geospatial Analysis of Criminal Activity Marcus A. Boyd January, 2017 to June, 2018
New Analytical Methods for the Exploitation of Open-Source Structured Databases to Enhance Situational Awareness for Effective Counter-WMD Strategies Ronald Breiger, Gary Ackerman, Victor Asal, H. Brinton Milward, R. Karl Rethemeyer March, 2010 to March, 2014
Modeling Terrorism Onset and Intensity Dynamics Using the GTD Claudio Cioffi-Revilla, Nina Fefferman July, 2016 to December, 2017
Minorities at Risk Related Projects June, 2005 to December, 2016
Measuring Intervention Success in Terrorist Activities Brent Smith September, 2008 to June, 2010
Massive Online Open Course: Understanding Terrorism and the Terrorist Threat Gary LaFree, William Braniff, Katherine Worboys Izsak January, 2014 to March, 2014
Insider Threat Program Katy Lindquist, Devin Ellis, Steve Sin, Michael Jensen September, 2020 to September, 2021
Global Terrorism Database (GTD) Acceleration Erin Miller January, 2019 to January, 2020
Global Terrorism Database (GTD) Erin Miller, Gary LaFree, Laura Dugan June, 2001 to January, 2020
Expand the Transnational Illicit Trafficking (TransIT) Database Marcus A. Boyd January, 2019 to December, 2019
Evaluating the Safe Spaces Community-Led CVE Program William Braniff October, 2018 to March, 2019
Empirical Assessment of Domestic Radicalization (EADR) Michael Jensen, Gary LaFree January, 2013 to December, 2016
Empirical Assessment of Domestic Disengagement and Deradicalization (EAD3) Michael Jensen, Peter Simi, Gina Scott Ligon January, 2015 to December, 2018
Dynamics of Terror and Counterterrorism Gary LaFree, Laura Dugan January, 2005 to June, 2009
Distinctive Characteristics of Terrorist Groups Gary LaFree, Laura Dugan January, 2005 to June, 2009
Dissuading Adversaries and their Radiological/Nuclear Pathways: Integrating Deterrence Theory and Analytics in the Global Nuclear Detection Architecture (GNDA) Amy Pate, Brandon Behlendorf, Gary Ackerman, John Sawyer, Steve Sin, Hamid Mohtadi, Marcus A. Boyd October, 2013 to September, 2018
Developing Impact and Effectiveness Assessment Tool for Influence Operations Steve Sin January, 2021 to December, 2021
Developing Academic Partnerships and Collaborative Research on Countering Violent Extremism in Malaysia and Southeast Asia Amy Pate, Barnett S. Koven, William Braniff September, 2018 to December, 2019
Creation of a Database of U.S. Extremist Crime, 1990-2005 Joshua Freilich, Steven Chermak June, 2007 to January, 2009
Country Reports on Terrorism - Statistical Annex Gary LaFree, Erin Miller May, 2012 to May, 2018
Counterterrorism Net Assessment Data Structure (CT NEADS) Barnett S. Koven January, 2019 to January, 2020
Countering Terrorism in the United States Erica Chenoweth, Laura Dugan July, 2012 to December, 2015
Cargo Aviation Insider Threat Assessment Tool (CAITAT) Thomas Guarrieri September, 2016 to December, 2018
Anatomizing the Behavior of Chemical and Biological Non-State Adversaries Gary Ackerman, Victor Asal June, 2012 to May, 2014
A Pathway Approach to the Study of Bias Crime Offenders Michael Jensen, Gary LaFree January, 2018 to October, 2020
A Multi-Level Approach to the Study of Violent Extremism Gary LaFree, Michael Jensen January, 2018 to December, 2020
A Comparative Study of Violent Extremism and Gangs Gary LaFree, Scott H. Decker, David C. Pyrooz January, 2015 to March, 2019
Project Titlesort ascending Publication Date START Authors Publication Type
When terrorists target schools: An exploratory analysis of attacks on educational institutions June 2013 Wilson, Margaret Journal Article
When Politicians Sell Drugs: Examining Why Middle East Ethnopolitical Organizations Are Involved in the Drug Trade March 2012 Deloughery, Kathleen; Asal, Victor Journal Article
What Is the State of the Quantitative Literature on Risk Factors for Radicalization and Recruitment to Terrorism? June 2020 Weisburd, David Book Chapter
Violent Hate Crime Offenders October 2020 Yates, Elizabeth; Jensen, Michael; Kane, Sheehan Research Brief
Veto Players and Terror November 2010 Young, Joseph; Dugan, Laura Journal Article
Using open source data to track worldwide terrorism patterns July 2017 LaFree, Gary Book Chapter
Using Google and Twitter to Measure, Validate and Understand Views about Religion across Africa June 2019 Adamczyk, Amy; LaFree, Gary Journal Article
Use of Firearms in Terrorist Attacks in the United States 1970-2014 July 2015 Miller, Erin Background Report
Update on Geospatial Patterns of Precurrsor Behavior among Terrorists October 2012 Smith, Brent; Damphousse, Kelly; Roberts, Paxton START Reports
Unpacking nonviolent campaigns : Introducing the NAVCO 2.0 dataset May 2013 Chenoweth, Erica Journal Article
U.S. Attitudes toward Terrorism and Counterterrorism March 2013 Adamczyk, Amy; LaFree, Gary; Tourangeau, Roger; Presser, Stanley START Reports
Transnational Illicit Trafficking (TransIT) Geospatial Tool March 2016 Boyd, Marcus A.; Sin, Steve Project Fact Sheet
Tracking Global Terrorism, 1970-2004 November 2008 LaFree, Gary; Dugan, Laura Book Chapter
Towards a Definition of Terrorist Ideology April 2019 Ackerman, Gary Journal Article
Threat and Hazard Identification and Risk Assessment (THIRA) Process: Assessing RN Threat Inclusion March 2016 Spalding, Sarah; Sin, Steve; Sell, Tara Kirk Research Brief
The Use of Social Media by United States Extremists July 2018 Safer-Lichtenstein, Aaron ; Yates, Elizabeth; LaFree, Gary; Jensen, Michael; James, Patrick Research Brief
The True Meaning of Terrorism and Response to Terrorism November 2017 Zhuang, Jun Journal Article
The Role of Risk Preferences in a Multi-Target Defender-Attacker Resource Allocation Game August 2017 Zhuang, Jun Journal Article
The Rise and Fall of Terrorism May 2019 Miller, Erin Book Chapter
The Nature of the Beast: Organizational Structures and the Lethality of Terrorist Attacks April 2008 Rethemeyer, R. Karl; Asal, Victor Journal Article
The Interplay between Terrorism, Nonstate Actors, and Weapons of Mass Destruction: An Exploration of the Pinkerton Database March 2005 LaFree, Gary; Dugan, Laura Journal Article
The Global Terrorism Database, 1970–2010 January 2013 LaFree, Gary; Dugan, Laura Book Chapter
The Future is a Moving Target: Predicting Political Instability February 2019 Chenoweth, Erica Journal Article
The Evolution of Terrorism Event Databases May 2019 LaFree, Gary Book Chapter
The Empirical Study of Terrorism: Social and Legal Research August 2009 Ackerman, Gary; LaFree, Gary Journal Article
The Canadian Way of Counterterrorism: Introducing the GATE-Canada Data Set May 2016 Chenoweth, Erica; Dugan, Laura Journal Article
Terrorist Attacks on Educational Institutions December 2014 Miller, Erin Background Report
Terrorist Attacks in the U.S. between 1970 and 2013: Data from the Global Terrorism Database (GTD) November 2014 Miller, Erin Research Brief
Terrorist Attacks in the U.S. between 1970 and 2012: Data from the Global Terrorism Database (GTD) January 2014 Miller, Erin Research Brief
Terrorist and Non-Terrorist Criminal Attacks by Radical Environmental and Animal Rights Groups in the United States, 1970–2007 March 2012 LaFree, Gary; Dugan, Laura Journal Article
Terrorism Studies: A Reader November 2010 Braddock, Kurt Book
Terrorism in the News: The Efficiency and Impact of Sampling Methods on Data Collection and Content Analysis April 2016 Parkin, William Journal Article
Terrorism in Mali November 2015 Miller, Erin Fact Sheet
Terrorism January 2016 Dugan, Laura Book Chapter
Taxonomy Expansion and the Global Terrorism Database: Effectively Leveraging Academic Data Collection Initiatives July 2021 Miller, Erin Report
Suspicious Preoperational Activities and Law Enforcement Interdiction of Terrorist Plots November 2018 Smith, Brent; Gruenewald, Jeff Journal Article
Studying Terrorism Empirically: What We Know About What We Don’t Know March 2017 Safer-Lichtenstein, Aaron ; LaFree, Gary Journal Article
Stochastic Opponent Modeling Agents: A Case Study with Hezbollah April 2008 Pate, Amy; Wilkenfeld, Jonathan; Michael, Mary Conference Paper
Speaking Truth to Sources: Introducing a Method for the Quantitative Evaluation of Open Sources in Event Data April 2016 Ackerman, Gary; Pinson, Lauren Journal Article
Spatial Analysis of U.S. Terrorism Incidents November 2017 Smith, Brent Research Brief
Sociological and Criminological Explanations of Terrorism May 2019 Dugan, Laura Book Chapter
Researching Terrorist Networks April 2006 Rethemeyer, R. Karl; Asal, Victor Journal Article
Research Review 2009 August 2009 Ackerman, Gary Research Review
Research on Terrorism and Countering Terrorism November 2008 LaFree, Gary; Dugan, Laura Book Chapter
Research Highlight: Identifying the Characteristics of Communities Where Perpetrators Live and Pre-Incident Activity Occurs May 2013 Smith, Brent; Damphousse, Kelly; Fitzpatrick, Kevin; Roberts, Paxton Research Brief
Reporting Practices of Journal Articles that Include Interviews with Extremists April 2016 Ligon, Gina Scott; Simi, Peter Journal Article
Religion, Government Coalitions, and Terrorism February 2013 Birnir, Johanna; Satana, Nil Journal Article
Radiological/Nuclear Detection Capability Development Framework Mapping Tool March 2016 Boyd, Marcus; Sin, Steve Project Fact Sheet
Putting Terrorism in Context: Lessons from the Global Terrorism Database (Contemporary Terrorism Studies) January 2015 Miller, Erin; LaFree, Gary; Dugan, Laura Book
Project Fact Sheet: Terrorism and Extremist Violence in the U.S. Database and Portal May 2014 LaFree, Gary; Braniff, William Project Fact Sheet
Profiles of Perpetrators of Terrorism in the United States: Research Highlight July 2014 Miller, Erin; Smarick, Kathleen Research Brief
Profiles of Perpetrators of Terrorism in the United States (PPT‐US): Data Collection and Descriptive Analysis September 2011 Miller, Erin; Smarick, Kathleen START Reports
Profiles of Individual Radicalization in the United States—Desistance, Disengagement, and Deradicalization (PIRUS-D3) July 2019 Yates, Elizabeth; Jensen, Michael; James, Patrick Research Brief
Profiles of Individual Radicalization in the United States: Preliminary Findings (Oct. 2015) October 2015 Jensen, Michael Research Brief
Profiles of Individual Radicalization in the United States-Foreign Fighters: Infographics October 2017 Jensen, Michael; James, Patrick Research Brief
Pre-Radicalization Criminal Activity of United States Extremists January 2018 Safer-Lichtenstein, Aaron ; LaFree, Gary; Jensen, Michael; James, Patrick Research Brief
Pick Your POICN: Introducing the Profiles of Incidents involving CBRN and Non-State Actors (POICN) Database March 2019 Ackerman, Gary; Binder, Markus Journal Article
Patterns of Onset and Decline Among Terrorist Organizations March 2012 Miller, Erin Journal Article
Patterns of Lone Actor Terrorism in the United States: Research Brief October 2014 Smith, Brent; Gruenewald, Jeff; Roberts, Paxton Research Brief
Patterns of Islamic State-Related Terrorism, 2002--2015 August 2016 Miller, Erin Background Report
Panel Effects: Do the Reports of Panel Respondents Get Better or Worse over Time? December 2018 Tourangeau, Roger; Presser, Stanley Journal Article
Overview: Terrorism in 2016 August 2017 Miller, Erin Background Report
Overview: Terrorism in 2014 August 2015 Miller, Erin Background Report
Overview: Profiles of Individual Radicalization in the United States-Foreign Fighters (PIRUS-FF) April 2016 Tinsley, Herbert; Jensen, Michael; James, Patrick Research Brief
Opportunity, Group Structure, Temporal Patterns, and Successful Outcomes of Far-Right Terrorism Incidents in the United States June 2016 Smith, Brent; Gruenewald, Jeff Journal Article
Motivations and Characteristics of Hate Crime Offenders October 2020 Yates, Elizabeth; Jensen, Michael; Kane, Sheehan Research Brief
MOOC: Understanding Terrorism and the Terrorist Threat 2015 October 2014 Project Fact Sheet
Modeling Multi-target Defender-attacker Games with Quantal Response Attack Strategies January 2021 Zhuang, Jun Journal Article
Modeling a Multi-target Attacker-defender Game with Multiple Attack Types May 2019 Zhuang, Jun Journal Article
Mismeasuring Militias: Limitations of Advocacy Group Data and of State-Level Studies of Paramilitary Groups March 2006 Freilich, Joshua Journal Article
Measuring Political Mobilization: The Distinction between Activism and Radicalism April 2009 McCauley, Clark; Moskalenko, Sophia Journal Article
Measuring al-Qaeda: The Metrics of Terror June 2012 Singh, Rashmi Book Chapter
Measurement Issues in the Study of Terrorism: Introducing the Special Issue April 2016 LaFree, Gary; Freilich, Joshua Journal Article
Mass-Fatality, Coordinated Attacks Worldwide, and Terrorism in France November 2015 Miller, Erin Background Report
Mass Casualty Explosives Attacks in Iraq and Afghanistan June 2017 Miller, Erin; Distler, Michael Background Report
Lone-Offender Terrorists July 2013 LaFree, Gary Journal Article
L.E.A.D.I.R. Key Findings April 2020 Ligon, Gina Scott Research Brief
Jihadist Terrorist Plots in the United States December 2017 Dahl, Erik; Wilson, Margaret; Crenshaw, Martha Research Brief
IUSSD: Data on the Terrorist Attacks in the United States Homeland 1970-2011 November 2012 Miller, Erin; LaFree, Gary; Dugan, Laura START Reports
ISIL in Libya: A Bayesian Approach to Mapping At-Risk Regions March 2016 Discussion Point
Is This Terrorism? / Why Does It Matter? February 2016 Miller, Erin Discussion Point
Introductions to Adversary Behavior: Validating the Models April 2016 Zhuang, Jun; Bier, Vicki Journal Article
Introducing the United States Extremist Crime Database (ECDB) January 2014 Gruenewald, Jeff; Freilich, Joshua; Belli, Roberta; Chermak, Steven; Parkin, William Journal Article
Introducing the Nonviolent Action in Violent Contexts (NVAVC) dataset January 2019 Chenoweth, Erica Journal Article
Introducing the Global Terrorism Database May 2007 LaFree, Gary; Dugan, Laura Journal Article
Introducing the AMAR (All Minorities at Risk) Data August 2017 Birnir, Johanna; Wilkenfeld, Jonathan; Gurr, Ted Robert Journal Article
Introducing Terrorist Archetypes: Using Terrorist Objectives and Behavior to Predict New, Complex, and Changing Threats December 2016 Zhuang, Jun Journal Article
Introducing Government Actions in Terror Environments (GATE) Dataset December 2015 Chenoweth, Erica; Dugan, Laura Conference Paper
Integrating Conflict Event Data June 2018 Cunningham, David E. Journal Article
Integrated United States Security Database (IUSSD): Data on the Terrorist Attacks in the United States Homeland, 1970 to 2011 December 2012 Miller, Erin; LaFree, Gary; Dugan, Laura START Reports
Innovative Algorithm and Database Development Relevant to Counterterrorism and Homeland Security Efforts at START August 2014 Misra, Prabhakar START Reports
Ideological Motivations of Terrorism in the United States, 1970-2016 November 2017 Miller, Erin Background Report
Identifying Cross-National Global Terrorist Hot Spots November 2005 LaFree, Gary; Dugan, Laura Book Chapter
How the Replication Debate Applies to Terrorism Studies December 2013 James, Patrick; Henne, Peter Op-ed
How Has Criminology Contributed to the Study of Terrorism since 9/11? September 2015 LaFree, Gary; Dugan, Laura Journal Article
How Does Studying Terrorism Compare to Studying Crime? January 2004 LaFree, Gary; Dugan, Laura Book Chapter
Hot Spots of Terrorism and Other Crimes in the United States,1970 to 2008 January 2012 LaFree, Gary START Reports
Homegrown Terrorism in the United States January 2014 Freilich, Joshua; Belli, Roberta; Chermak, Steven Journal Article
Heat Map: Global Terrorism Database, Terrorist Attacks 2017, Concentation and Intensity August 2018 Kammerer, William Map
Heat Map: Global Terrorism Database, Terrorist Attacks 2016, Concentation and Intensity July 2017 Kammerer, William Map
Heat Map: Global Terrorism Database, Terrorist Attacks 2015, Concentation and Intensity June 2016 Kammerer, William Map
Heat Map: Global Terrorism Database, Terrorist Attacks 2014, Concentation and Intensity June 2015 Kammerer, William Map
Heat Map: Global Terrorism Database, Terrorist Attacks 2013, Concentation and Intensity June 2014 Kammerer, William Map
Heat Map: Global Terrorism Database, Terrorist Attacks 2012, Concentation and Intensity June 2013 Kammerer, William Map
Global Terrorism Overview: Terrorism in 2019 July 2020 Miller, Erin Background Report
Global Terrorism in 2018 October 2019 Miller, Erin Background Report
Global Terrorism in 2017 August 2018 Miller, Erin Background Report
Global Terrorism and the Deadliest Groups since 2001 June 2016 LaFree, Gary; Dugan, Laura Book Chapter
Geospatial Patterns of Precurrsor Behavior among Terrorists June 2011 Smith, Brent; Damphousse, Kelly; Fitzpatrick, Kevin; Roberts, Paxton START Reports
Geospatial Analysis of Terror Finance December 2017 Boyd, Marcus A. Research Brief
Geographical Approaches in the Study of Terrorism May 2019 Young, Joseph Book Chapter
Generating Terrorism Event Databases: Results from the Global Terrorism Database, 1970 to 2008 November 2011 LaFree, Gary Book Chapter
From Factors to Actors: Enhancing the Reliability of CBRN Analysis April 2016 Ackerman, Gary; Pinson, Lauren; Breiger, Ronald Journal Article
From Extremist to Terrorist: Identifying the Characteristics of Communities Where Perpetrators Live and Pre-Incident Activity Occurs April 2013 Smith, Brent; Damphousse, Kelly; Fitzpatrick, Kevin; Roberts, Paxton START Reports
Financial Crimes Perpetrated by Far-Right Extremists in the United States: 1990-2013 June 2015 Sullivan, Brandon; Gruenewald, Jeff; Freilich, Joshua; Chermak, Steven; Parkin, William Research Brief
Financial Crime and Material Support Schemes Linked to al-Qa'ida and Affiliated Movements (AQAM) in the United States: 1990 to June 2014 December 2014 Sullivan, Brandon; Freilich, Joshua; Chermak, Steven Research Brief
Financial Crime and Material Support Schemes Linked to al-Qa'ida and Affiliated Movements (AQAM) in the United States: 1990 to June 2014 November 2014 Sullivan, Brandon; Freilich, Joshua; Chermak, Steven START Reports
Federal Funding for Health Security in FY2016 June 2015 Sell, Tara Journal Article
Fact Sheet: Global Terrorism in 2018 October 2019 Miller, Erin Fact Sheet
Extremist Violence from the Fatherland to the Homeland: A Comparison of Far-right Homicide in Germany and the United States April 2017 Gruenewald, Jeff; Parkin, William Journal Article
Ethical Conduct of Research in the Aftermath of Mass Shootings January 2017 Pfefferbaum, Betty Book Chapter
Empirical Assessment of Domestic Radicalization (EADR) December 2016 LaFree, Gary; Tinsley, Herbert; Stevenson, John; Jensen, Michael; James, Patrick START Reports
Dynamic Forecasting Conditional Probability of Bombing Attacks Based on Time-Series and Intervention Analysis August 2016 Zhuang, Jun Journal Article
Driving-Forces Model on Individual Behavior in Scenarios Considering Moving Threat Agents April 2017 Zhuang, Jun Journal Article
Distinguishing "Loner" Attacks from Other Domestic Extremist Violence July 2013 Gruenewald, Jeffrey; Freilich, Joshua; Chermak, Steven Journal Article
Discussion Point: The Benefits and Drawbacks of Methodological Advancements in Data Collection and Coding: Insights from the Global Terrorism Database (GTD) November 2013 Jensen, Michael Discussion Point
Discussion Point: Embrace "Big Data," but don't ignore the human element in data coding October 2013 Kennedy, Jonathan; Henne, Peter Discussion Point
Development and Optimization of Machine Learning Algorithms and Models of Relevance to START Databases April 2016 Misra, Prabhakar START Reports
Development & Optimization of Machine Learning Algorithms & Models of Relevance to Large Databases & Homeland Security Counterterrorism Efforts at START November 2016 Misra, Prabhakar Presentation
Deterrence and Risk Preferences in Sequential Attacker–Defender Games with Continuous Efforts March 2017 Zhuang, Jun Journal Article
Debates among Salafi Muslims about use of violence May 2017 Beutel, Alejandro; Braniff, William START Reports
Days of Rage: Introducing the NAVCO 3.0 Dataset April 2018 Chenoweth, Erica Journal Article
Cross-Classified Multilevel Models: An Application to the Criminal Case Processing of Indicted Terrorists March 2012 Johnson, Brian Journal Article
Criminology, Terrorism, and Serendipity June 2015 LaFree, Gary Book Chapter
Creating a Data Archive to Facilitate Research on Understanding and Responding to Terrorism January 2007 Chermak, Steven Book Chapter
County-level Correlates of Terrorism in the United States, 1990 to 2010 March 2013 LaFree, Gary START Reports
Country Reports on Terrorism 2013: Annex of Statistical Information May 2014 Miller, Erin; LaFree, Gary START Reports
Counterterrorism Net Assessment Data Structure April 2020 Koven, Barnett S.; Lindquist, Katy; Erdemandi, Max Project Fact Sheet
Countering Terrorism: No Simple Solutions January 2017 LaFree, Gary; Crenshaw, Martha Book
Countering Myths about Terrorism: Some Lessons Learned from the Global Terrorism Database November 2011 LaFree, Gary Book Chapter
Countering Domestic Terrorism: Examining the Evolving Threat September 2019 Braniff, William Congressional Testimony
Correlates of Violent Political Extremism in the United States February 2018 Safer-Lichtenstein, Aaron ; LaFree, Gary; Jensen, Michael; James, Patrick Journal Article
Coping with Uncertainty in Adversarial Risk Analysis January 2017 Bier, Vicki Journal Article
Constructing the Field of Terrorism May 2019 Crenshaw, Martha Book Chapter
Conceptualizing and Measuring Terrorism April 2018 LaFree, Gary Book Chapter
Comparison of Honor Killings to Anti-LGBTQ Homicides January 2018 Freilich, Joshua; Chermak, Steven Journal Article
Community‐Level Indicators of Radicalization: A Data and Methods Task Force February 2010 Fishman, Shira START Reports
Commitment to Extremist Ideology: Using Factor Analysis to Move Beyond Binary Measures of Extremism April 2016 Freilich, Joshua; Chermak, Steven Journal Article
Collaborative Online International Learning: The Example of a Course in the Psychology of Terrorism in the United States and Iran January 2009 Lemieux, Anthony Journal Article
Clustering Heterogeneous Semi-structured Social Science Datasets for Security Applications July 2018 Leuprecht, Christian Book Chapter
Characteristics and Targets of Mass Casualty Hate Crime Offenders November 2020 Yates, Elizabeth; Jensen, Michael; Kane, Sheehan Research Brief
Building a Global Terrorism Database April 2006 LaFree, Gary; Dugan, Laura Report
Bringing Criminology into the Study of Terrorism January 2017 LaFree, Gary; Freilich, Joshua Book Chapter
Beyond al-Qa'ida November 2012 Braniff, William Discussion Point
Be Careful What You Ask For: 10 Years at START November 2015 LaFree, Gary Discussion Point
Autologistic Models for Benchmark Risk or Vulnerability Assessment of Urban Terrorism Outcomes October 2017 Cutter, Susan Journal Article
Armed Assault at Los Angeles International Airport (LAX) November 2013 Miller, Erin Fact Sheet
American Terrorism and Extremist Crime Data Sources and Selectivity Bias: An Investigation Focusing on Homicide Events Committed by Far Right Extremists November 2011 Freilich, Joshua; Chermak, Steven Journal Article
American Deaths in Terrorist Attacks, 1995-2019 October 2020 Miller, Erin Research Brief
American Deaths in Terrorist Attacks, 1995-2016 November 2017 Miller, Erin; Jensen, Michael Research Brief
American Deaths in Terrorist Attacks, 1995-2015 September 2016 Miller, Erin; Jensen, Michael Fact Sheet
American Deaths in Terrorist Attacks, 1995 - 2017 September 2018 Miller, Erin; Jensen, Michael Project Fact Sheet
American Deaths in Terrorist Attacks October 2015 Miller, Erin; Jensen, Michael Fact Sheet
Aligning Research and CVE February 2015 Weine, Stevan Discussion Point
Al-Shabaab Attack on Westgate Mall in Kenya September 2013 Miller, Erin Background Report
Al-Qaeda's Propaganda Decoded: A Psycholinguistic System for Detecting Variations in Terrorism Ideology May 2016 Kruglanski, Arie; Gelfand, Michele Journal Article
Al-Qa'ida - Related Terrorism: Violent Incidents and Foiled Plots April 2013 Gruenewald, Jeff; Freilich, Joshua; Chermak, Steven; Parkin, William Research Brief
A Three-Stage Evacuation Decision-Making and Behavior Model for the Onset of an Attack June 2017 Zhuang, Jun Journal Article
A Study on a Sequential One‐Defender‐N‐Attacker Game January 2019 Zhuang, Jun Journal Article
A First Look at Domestic and International Global Terrorism Events, 1970-1997 May 2006 LaFree, Gary; Dugan, Laura Conference Paper
45 Years of Terrorism: Terrorist Attacks 1970-2015, Concentration and Intensity July 2016 Kammerer, William Map
Title
Violent extremism in the U.S.
UWT director speaks about influence operations for Laboratory for Analytic Sciences podcast
Urban U.S. counties hot spots of terror, but rural areas are not exempt
Trends in terrorism in the U.S.: New report analyzes terrorist attack data 1970-2011
Top-ranked criminology journal features START research
Terrorists act locally
Terrorist violence decreases worldwide in 2017, but remains historically high
Terrorist Organization Profile Information now Available through START
Terrorist attacks involving firearms more likely to be lethal than other types of attacks
Terrorist attack deaths increase in Iraq, the West, despite decrease worldwide
Terrorism in Belgium and Western Europe; Attacks against Transportation Targets; Coordinated Terrorist Attacks
Summer and Fall Internship Opportunities with START and the GTD
Summer 2011 Research Opportunities: CoMET
State Department contracts START to provide terrorism data and analysis
START, Centers of Excellence leaders visit Capitol Hill
START's website proves valuable, well-used resource
START workshop gives better understanding of CBRN technologies
START welcomes visiting scholar
START website proves critical resource for scholars, government
START to begin monthly series highlighting Dataverse data collections
START Symposium showcases impactful research, datasets
START student aspires to serve her country
START seeking 2014 Outstanding Article Award nominations
START resumes Global Terrorism Database collection; 1970 - 2019 data file now available to researchers
START researchers present work on transnational criminal organizations, terrorism and radiological/nuclear (RN) smuggling
START researchers participate in Global Internet Forum to Counter Terrorism (GIFCT) Global Summit
START Researchers Honored with Best Paper Award by IEEE
START researchers brief Swedish delegation
START research informs Senate report on Chesser
START research examines history of terrorism and the Olympic Games
START releases new data collections
START receives DHS Spirit of Excellence Award
START provides statistical annex for Country Reports on Terrorism
START provides 2013 statistical annex for Country Reports on Terrorism
START Partners with ICPSR to Launch Terrorism & Preparedness Data Resource Center
START Newsletter: Global terrorism increasing; GTD 2012 dataset released; New cyber research
START launches new training course on understanding and preventing radicalization to violence and violent extremism
START launches new master’s degree program in security and terrorism studies
START launches infographic series with War on the Rocks
START interns prepare for capstone presentations
START interns get vital career preparation
START interns gain unique experience with State Department
START Intern Profiles: July
START Hosts DHS Faculty/Student Research Teams
START honors International GIS Day teaching about Mali conflict
START Featured in DHS S&T Snapshots
START domestic radicalization data replicated by Australian research team
START director to lecture on contrasting nature of terrorism
START Director LaFree Discusses Terrorist Behavior on Kojo Nnamdi Show
START Director LaFree and GTD Featured in Government Executive
START Director Gary LaFree in Perspectives on Terrorism -- Free Online Access
START Director Gary LaFree Comments on Terrorism Research Before and After 9/11
START director addresses common myths of terrorism
START Center Earns Background Report-Year Renewal from DHS
START Bulletin Summer 2008 Inaugural Issue
START Annual Meeting focuses on maximizing relevance of research
START Announces Fellowships for 2005-06
START and CHC Global to speak at IFTRIP LIVESTREAM 2020
START advises Indian Home Secretary R.K. Singh
Spring 2011 START Bulletin Now Available
Seeing Sydney: Katharine Sobotka and her study abroad experience
Secretary Janet Napolitano visits START
Response to mischaracterization of the Hot Spots Report
Researcher Spotlight: Nil Satana
Researcher Spotlight: Jeff Gruenewald
Researcher Spotlight: Dr. Jun Zhuang
Researcher Spotlight: Daniella Fridl
Researcher spotlight: Brandon Behlendorf
Research, data and expertise access made easy on new START website
Research Roundtable details the patterns of terrorism worldwide
Research Highlight: Al-Qa'ida-Related Terrorism - Violent Incidents and Foiled Plots
Proportion of terrorist attacks by religious and right-wing extremists on the rise in United States
Profiles of Individual Radicalization in the United States (PIRUS) data now available
Pre-radicalization criminal activity is strongest predictor of post-radicalization violent extremism
Position Opening: Special Projects Program Manager
Olympics and Terrorism
Now Recruiting Spring 2013 Background Report Internships
Now Hiring: Global Terrorism Database Research Assistant
New, Updated Data on Global Terrorist Activity Now Available
New study examines terrorism in Indonesia, the Philippines and Thailand
New START Project to Focus on Extremist Violence in U.S. Counties
New research reveals tremendous diversity in hate crime offenders’ backgrounds and motivations
New research examines financial crime and political extremism
New Report Highlights the Challenges of Tracking Terrorism Events: GTD Indicates Global Terrorism Fatalities Up, Not Down
New report examines relationship between county characteristics and incidents of terrorism
New journal is a resource for Global Terrorism Research
New GTD data will be explored during July 9 webinar
New database provides insights into terrorism countermeasures
New data shows risk of recidivism is high among extremists, highlights barriers and enablers
New data reveals al-Qaida-linked groups among most active terrorist groups in the world
New brief analyzes terrorist groups in the United States
New analysis of hate crime in America: Mass casualty hate crime offenders
Majority of 2013 terrorist attacks occurred in just a few countries
LaFree speaks at National Institute of Justice conference
LaFree recognized as field leader by American Society of Criminology
Justice Research and Statistics Association Features a Profile of START
John Cohen's keynote address at START Annual Meeting
JOB OPPORTUNITY: Senior Research Associate
JOB OPPORTUNITY: Junior Researcher, Global Terrorism Database
JOB OPPORTUNITY: Junior Radicalization Researcher
JOB OPPORTUNITY: Data Collection Manager
Is This Terrorism? / Why Does It Matter?
Internships at START Available for Spring 2010
Intern Spotlight: Rick Magill
Hate crime is a national security issue
GTD project shapes career goal for START intern
GTD nominated for UMD's Invention of the Year
GTD informs Global Terrorism Index
GTD Data Now Downloadable
Government Executive Magazine Spotlights the Work of START
Global Terrorism Overview: Terrorism in 2019
Global terrorism decreases in 2018 as recent uptick in U.S. terrorist attacks was sustained
Global Terrorism Database now Available Online
Global Terrorism Database Data Files Now Available through Terrorism and Preparedness Data Resource Center
German FFO funds GTD
Gary LaFree in 'The Five Myths of Global Terrorism' video for the World Economic Forum
FTO Designation: Boko Haram and Ansaru
Formalization within a terrorist group increases capacity for lethal violence
First-of-its-kind index ranks countries for impact of terrorism
Far-right Violence in the United States: 1990-2010
Fall Internship Opportunities: Counter Measures against Extremism and Terrorism (CoMET) Database
Fahey discusses political instability, state capacity and terrorism
Fact Sheet: American Deaths in Terrorist Attacks, 1995-2016
Earn a graduate certificate through START
Discussion Point: The Dog that Doesn't Bark
Discussion Point: The Benefits and Drawbacks of Methodological Advancements in Data Collection and Coding: Insights from the Global Terrorism Database (GTD)
Discussion Point: Terrorism Studies is not a Sub-Discipline
Discussion Point: Kansas City shootings constitute terrorism
Discussion Point: It's not Big Data, but Little Data, that Prevents Terrorist Attacks
Discussion Point: Embrace "Big Data," but don't ignore the human element in data coding
Discussion Point: Black Swans and Burstiness—Countering Myths about Terrorism
DHS Under Secretary for Science and Technology, Dr. Charles E. McQueary,
DHS renews support for the Integrated U.S. Security Database (IUSSD)
DHS renews support for START terrorism research for next five years
DHS grant enables further work using physics to understand terrorist threats
Despite fewer attacks in Western world, global terrorism increasing
Database Spotlight: Update on Profiles of Perpetrators of Terrorism in the US
Database Spotlight: Radiological and Nuclear Non-State Adversaries (RANNSAD)
Database spotlight: Profiles of Perpetrators of Terrorism in the United States (PPT-US)
Database Spotlight: Police Response to Terrorism - Lessons from the Israeli Police
Database Spotlight: Minorities at Risk Organizational Behavior (MAROB)
Database Spotlight: Government Actions in a Terror Environment-Israel
Database spotlight: Big Allied and Dangerous (BAAD)
Border Crossings and Terrorist Attacks in the US
Background Information on Terrorism in India
Assessing the likelihood of Hate Crime in wake of Boston Attacks
Al-Qaida's fatal terrorism under Osama bin Laden
A closer look at the 2,600 terrorist attacks in US, 1970-2012
2014 GTD data available now
2011-2012 Background Report Undergraduate Terrorism Analysis Training (UTAT) Program Application Deadline Extended
**START Releases 2010 Update to the Global Terrorism Database**
***Terrorist Attacks on Religious Figures, Religious Institutions, and Military Targets***
"Peace and Conflict" Features Research from START Investigators
Image Title Job Title Institution
Victor Asal

Associate Professor of Political Science and Chair of Public Administration

University at Albany, State University of New York
Tyler A. Clark

Junior Researcher, UWT

University of Maryland
Thomas Guarrieri

Director of Undergraduate Studies

Assistant Research Scientist, Unconventional Weapons & Technology (UWT) Division, START

University of Maryland
R. Karl Rethemeyer R. Karl Rethemeyer

Associate Professor of Public Administration & Policy

University at Albany, State University of New York
Prabhakar Misra Prabhakar Misra

Professor of Physics

Howard University
Michael Jensen

Senior Researcher, START

University of Maryland
Michael Distler
Marcus A. Boyd

Geospatial Research Unit (GRU) Director, START

Director of Graduate Studies, START

University of Maryland
Laura Dugan Laura Dugan

Ralph Mershon Professor of Human Security and Professor of Sociology 

The Ohio State University
Katy Lindquist

Principal Research Scientist, NSI Inc.

Photo of Joe Oudin Joseph Oudin

Senior Faculty Specialist

Global Terrorism Database (GTD) Researcher, START

University of Maryland
John Sawyer John Sawyer

Director of Strategic Corporate Research Relationships

University of Maryland
Jeff Gruenewald

Associate Professor and Director of the Terrorism Research Center, University of Arkansas

University of Arkansas
Jacob Loewner

Researcher, START

University of Maryland
Gary LaFree

Founding Director, START; Chair, Department of Criminology and Criminal Justice

University of Maryland
Erin MIller Erin Miller

GTD Program Manager, START

University of Maryland
Bryan Arva
Brian Wingenroth

Research Software Architect, START

University of Maryland
Brandon Behlendorf Brandon Behlendorf

Assistant Professor, College of Emergency Preparedness, Homeland Security and Cybersecurity, SUNY Albany

University at Albany, State University of New York
Bo Jiang, START Bo Jiang

Graduate Research Assistant, START

University of Maryland
Benjamin Evans

Faculty Research Assistant, Global Terrorism Database, START

University of Maryland
Barnett Koven Barnett S. Koven

Data Science Manager, Deloitte Government & Public Services

 

Amy Pate Amy Pate

START Executive Director and Research Director

University of Maryland
Aaron Safer-Lichtenstein

Analyst, Government Accountability Office

 

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