By The Anti-Defamation League (ADL)

Right-wing extremists have been one of the largest and most consistent sources of domestic terror incidents in the United States for many years, a fact that has not gotten the attention it deserves. n The Anti-Defamation League’s Center on Extremism has compiled a list of 150 rightwing terrorist acts, attempted acts, and plots and conspiracies that took place in the United States during the past 25 years (1993-2017). These incidents were perpetrated by white supremacists, anti-government extremists, anti-abortion extremists and other types of right-wing extremists.

New York: The Anti-Defamation League (ADL), 2017. 28p.

By Erin Dauphinais-Soos

Every year people with ties to a variety of extreme movements and causes kill people in the United States; the ADL Center on Extremism tracks these murders. Extremists regularly commit murders in the service of their ideology, in the service of a group or gang they may belong to, or while engaging in traditional, non-ideological criminal activities.

In 2021, domestic extremists killed at least 29 people in the United States, in 19 separate incidents. This represents a modest increase from the 23 extremist-related murders documented in 2020 but is far lower than the number of murders committed in any of the five years prior (which ranged from 45 to 78).

The report provides additional insight on perpetrator affiliations, police officer killings, information on the perpetrators and incidents from 2021, an analysis of white supremacist killings in the United States from 2012-2021, and information on the PROTECT plan, ADL’s “seven-part plan to mitigate the threat posed by domestic extremism and domestic terrorism while protecting civil rights and civil liberties.”

By Ulrich Garms, Lara Wilkinson, and Amrita Kapur

Women and men, girls and boys are among the victims of acts of terrorism, such as hostage-taking, explosives attacks in public places, or aeroplane hijacking. Terrorist groups, however, also specifically target women through acts of sexual and gender-based violence – such as rape, sexual slavery and forced marriage – as a means of achieving tactical, strategic and ideological aims. Many terrorist groups encroach on women’s human rights and impede their socioeconomic development, including by restricting their movement. In some contexts, women disproportionately experience internal displacement as a result of terrorist threats, and lose access to livelihoods owing to terrorist attacks. Women may also face gender-specific difficulties when attempting to access justice and seeking remedies as victims of terrorism.

Vienna: UNODC, 2019. 214p.

By Naureen Chowdhury Fink, Rafia Barakat and Liat Shetret

The roles of women as they relate to terrorism and counterterrorism issues have remained underexplored by policymakers and international counterterrorism actors. As the international community shifts from a reactive to a more preventive approach regarding terrorism and violent extremism, the need for a more comprehensive multi-stakeholder approach to addressing these challenges has become apparent. Yet, little attention has been paid to integrating a gender dimension into UN and many national efforts to address the problems of terrorism and violent extremism. This policy brief explores the conceptual and operational challenges in integrating a gender dimension into counterterrorism policy and programming and offers a set of recommendations for the United Nations and other actors to consider when developing effective and sustainable counterterrorism efforts.

Goshen, IN: Center on Global Counterterrorism Cooperation, 2013. 18p.

By Seran De Leede, Renate Haupfleish,, Katja Korolkova, and Monika Natter

This study, commissioned by the European Parliament’s Policy Department for Citizens' Rights and Constitutional Affairs at the request of the Committee on Women’s Rights and Gender Equality, focuses on Islamist radicalisation and violent extremism in the EU and has two aims: 1) to explore and assess the question of women’s radicalisation and their involvement in violent extremism in the EU as well as to look into the mechanisms in place to prevent women and girls from radicalisation and propose further actions; and 2) to identify the potential of women in preventing radicalisation, in particular by looking into women’s current role in counter-radicalisation strategies and to explore potential gendered approaches and best practices to counter-radicalisatio

Brussels: European Parliament, Policy Department for Citizens' Rights and Constitutional Affairs, 2017. 100p.

By The Organization for Security and Co-operation in Europe

This handbook reflects the OSCE’s commitment to supporting a gender-aware approach for the security sector in preventing and countering VERLT. The OSCE participating States have recognized the significance of gender in several commitments, including the OSCE Ministerial Council Declaration No. 4/15 on preventing and countering VERLT, which was adopted in Belgrade in December 2015. The OSCE also supports the UN Security Council Resolution 2242 (2015), which calls for the greater integration by States of their agendas on women, peace and security, including on counter-terrorism and P/CVERLT.

Vienna: Organization for Security and Co-operation in Europe, 2019. 142p.

By Catrina Doxsee, Seth G. Jones, Jared Thompson, Grace Hwang, and Kateryna Halstead

There has been a significant rise in the number of domestic terrorist attacks and plots at demonstrations in the United States, according to new CSIS data. The result is escalating violence in U.S. cities between extremists from opposing sides, a major break from historical trends. In 2021, over half of all domestic terrorist incidents occurred in the context of metropolitan demonstrations. In addition, the most frequent targets of attacks were government, military, and law enforcement agencies, who are increasingly at the center of domestic terrorism by extremists of all ideologies.

Washington, DC: Center for Strategic and International Studies (CSIS), 2022. 15p.

By Chelsea Daymon and Devorah Margolin

This report compares women’s participation in far-right and salafi-jihadist movements in the United States through the examination of four case studies: the Proud Boys, the Oath Keepers, Al-Qaeda, and the Islamic State. To do so, the authors apply a unique analytical framework that examines three key aspects of women’s participation to compare similarities and differences. First, the report takes a top-down approach to analyze how organizations conceptualize women’s roles. Second, it takes a bottom-up approach to explore how women have participated in violent extremism in the United States. Finally, it uses a gendered lens to address how groups have responded when women have participated in violent extremism in America.

Washington, DC: Program on Extremism at George Washington University., 2022. 67p.

By Editor James J.F. Forest and Bart Schuurman

The first article by Deven Parekh, Amarnath Amarasingam, Lorne Dawson and Derek Ruths offers a detailed critique of Twitter data collection methods and propose suggestions for improving the collection of data in future research on terrorists use of social media. Then Ariel Koch examines the impact of Islamic State beheading videos among jihadists and other extremists. Next, Adesoji Adelaja, Abdullahi Labo and Eva Penar examine how the Nigerian public’s views about the root causes and objectives of Boko Haram differ from those of the government. And in our final article of this issue a team of researchers at the International Center for Study of Violent Extremism (ICSVE’s) report on their recent Facebook ad-campaign aimed at raising awareness about the realities of living under ISIS and protecting vulnerable potential recruits from considering joining.

Terrorism Research Initiative (TRI), headquartered in Vienna, Austria, and the Institute of Security and Global Affairs (ISGA) of Leiden University, Campus The Hague. Vol.XII, Issue 3, June 2018. 189p.

By Violence Prevention Research Program, University of California Davis

This series of slides presents an overview of firearm-related deaths in the U.S.

Davis, CA: Violence Prevention Research Program, University of California Davis, 2021. 14p.

By Flemish Peace Institute

In recent years, policy attention to firearm violence in the European Union (EU) has increased greatly. A thorough insight into the problem is an important step in developing such a policy. How many firearms are circulating in the EU? How many deaths are caused by firearms? Is there a relationship between gun ownership and the number of violent deaths (homicides and suicides)? And what is the impact of firearms legislation? The European Commission has already said that ‘a lack of solid EU-wide statistics and intelligence hampers effective policy and operational responses’. The research of the Flemish Peace Institute offers a starting point to fill this need.

Brussels: Flemish Peace Institute, 2019. 2p.

By Alexandra T. Evans, Heather J. Williams

Recent demonstrations and violent attacks have highlighted the need for an improved understanding of the role of internet-based technologies in aiding and amplifying the spread of extremist ideologies. Since the early days of the internet, radical groups and movements across the ideological spectrum have demonstrated their intent and ability to harness virtual platforms to perform critical functions.

This Perspective, the second in a RAND Corporation series on online white-supremacist and violent misogynist material, provides a primer on how the internet influences the activities of radical groups and movements and how exposure to or consumption of extremist content online influences the behavior of internet users. After briefly discussing relevant terminology, the authors describe the role of the internet in facilitating five operational functions for radical groups and movements: (1) group financing; (2) networking and coordination; (3) recruitment and radicalization; (4) inter- and intra-group knowledge transfer; and (5) planning, coordination, and execution of harmful online and offline operations. The authors then examine how virtual interactions can facilitate or encourage users' adoption of extremist ideas and inspire or alter offline behavior. The Perspective concludes with a discussion of how the internet can be leveraged as a tool to counter extremism, and the authors provide suggestions for further research.

Santa Monica, CA: RAND Corporation, 2022. 48p.

By Ryan Andrew Brown, Todd C. Helmus, Rajeev Ramchand, Alina I. Palimaru, Sarah Weilant, Ashley L. Rhoades, Liisa Hiatt

Terrorism and ideologically inspired violence represent persistent and serious threats to U.S. national security. The January 6, 2021, attack at the U.S. Capitol and other recent events emphasize the need for more research to inform prevention and deradicalization strategies. In this report, the authors aim to characterize why and how individuals joined extremist organizations, as well as how some of them exited these groups. Semistructured interviews were conducted with former extremists and their family members, representing 32 unique stories of 24 white supremacists and eight Islamic extremists.

Exposure to propaganda on the internet, in music, and in books and literature was present in more than two-thirds of the sample. Although formal, top-down recruitment occurred for three Islamic extremists, the majority of white supremacists actively sought out participation in extremist organizations. Among the sample, 26 had exited the organizations; of those, six were still undergoing cognitive and emotional deradicalization. Among those who exited, 22 mentioned that a person or group intervened to help them by providing diverse cultural and demographic exposures, emotional support, financial stability, or domestic stability.

Interviewees also addressed such systemic issues as unemployment and the need for more-affordable and easily accessible mental health care. These interviews led to recommendations for both research and practice that emphasize the importance of incorporating the voices of those with personal experience and knowledge of ideological extremism into future research designs and efforts to prevent radicalization and promote deradicalization.

Santa Monica, CA: RAND Corporation, 2021. 134p.

By Heather J. Williams, Luke J. Matthews, Pauline Moore, Matthew A. DeNardo, James V. Marrone, Brian A. Jackson, William Marcellino, Todd C. Helmus

Racially or ethnically motivated violent extremism (REMVE) and extremists (REMVEs) present some of the most pressing threats to the United States. REMVE also has been identified as the White identity terrorist movement (WITM). REMVEs are among the most lethal domestic violent extremists, and they are the most likely to commit mass-casualty attacks. These movements are characterized by a broad ideological orientation toward xenophobic, anti-Semitic, racist, and misogynistic sentiment.

For this report, the authors reviewed the relevant literature on REMVE networks and collected and analyzed social media data from six social networks (Twitter, Reddit, Gab, Ruqqus, Telegram, and Stormfront) to produce a global network map of the digital REMVE space. That network map evaluates each network's construction, connectivity, geographic location, references to prominent organizations, and proclivity to violence. The authors also reviewed ten countries' experiences with REMVE to sketch out an understanding of the REMVE space in these countries and how REMVEs in those countries relate to those in the United States.

Santa Monica, CA: RAND Corporation, 2022. 184p.

By Todd C. Helmus, Hannah Jane Byrne, King Mallory

To support the U.S. Department of Defense (DoD)'s efforts to counter extremism in its ranks, the authors considered how a terrorism prevention or countering violent extremism framework might address the issue. They offer intervention initiatives that DoD might consider adopting. They also review the terrorism prevention framework as it has been applied in the U.S. civilian sector and focus on initiatives that might be relevant and adaptable to the military context.

This review highlights broader evidence for such initiatives, places the initiatives in the context of the radicalization process and in the context of other such initiatives, and offers at least a cursory review of the evidence base for interventions.

Santa Monica, CA: RAND Corporation, 2021. 20p.

By The Investigative Committee

This is the interim report of the Investigative Committee on the Robb Elementary Shooting of the Texas House of Representatives. Conscious of the desire of the Uvalde community and the public at large to receive an accurate account of the tragedy at Robb Elementary School, the Committee has worked diligently and with care to issue this interim report of its factual findings. The Committee’s work is not complete. We do not have access to all material witnesses. Medical examiners have not yet issued any reports about their findings, and multiple other investigations remain ongoing. The Committee believes this interim report constitutes the most complete telling to date of the events of and leading to the May 24, 2022, tragedy. This Committee has prioritized factual accuracy, as will be evident from our attention to conducting our own interviews and documenting our sources of information. Still, based on the experiences of past mass-shooting events, we understand some aspects of these interim findings may be disputed or disproven in the future. The Committee issues this interim report now, believing the victims, their families, and the entire Uvalde community have already waited too long for answers and transparency.

Austin, TX: Texas House of Representatives, 2022. 82p.

By Rex A. Hudson

This study first examined the relevant literature and assessed the current knowledge regarding the dynamics of terrorism. The researchers then developed psychological and sociological profiles of foreign terrorist individuals and selected groups to use as case studies in assessing trends, motivations, likely behavior, and actions that might deter such behavior and reveal vulnerabilities to be targeted by countermeasures… A review of the literature suggests that the psychological approach by itself is insufficient to understand what motivates terrorists; an interdisciplinary approach is required to understand terrorist motivation. Terrorists are motivated not only by psychological factors but also by political, social, religious, and economic factors, among others. These factors vary widely. Each terrorist group must be examined within its own cultural, economic, political, and social context in order to better understand the motivations of its individual members and leaders, along with their particular ideologies…. Some counterterrorist measures proposed are psychological warfare to divide political and military leaders and factions, the identification and capture of a top hard-line terrorist or guerrilla leader, and the avoidance of actions that will fuel recruitment. The latter recommendation means that legal, political, diplomatic, financial, and psychological warfare may be more effective than retaliation against terrorists with bombs or cruise missiles.

Washington, DC: Library of Congress, 1999. 186p.

By Michael D. Anestis

With rising suicide rates in the U.S., Anestis provides a much-needed understanding of suicide prevention and the critical role of means restriction shifts the conversation about gun violence to suicides by guns, which make up the majority of gun deaths in the U.S. Anestis takes a poignant, balanced approach to reducing suicide risk; this is not a book about gun control. Masterfully describes scientific evidence and data in accessible prose that will appeal to a large audience interested in issues related to suicide and gun violence

Oxford, UK; New York: Oxford University Press, 2018. 184p.

By Peter Bergen and Bruce Hoffman

Al-Qaeda and allied groups continue to pose a threat to the United States. Although it is less severe than the catastrophic proportions of a 9/11-like attack, the threat today is more complex and more diverse than at any time over the past nine years. Al-Qaeda or its allies continue to have the capacity to kill dozens, or even hundreds, of Americans in a single attack. A key shift in the past couple of years is the increasingly prominent role in planning and operations that U.S. citizens and residents have played in the leadership of al-Qaeda and aligned groups, and the higher numbers of Americans attaching themselves to these groups. Another development is the increasing diversification of the types of U.S.-based jihadist militants, and the groups with which those militants have affiliated. Indeed, these jihadists do not fit any particular ethnic, economic, educational, or social profile. Al-Qaeda’s ideological influence on other jihadist groups is on the rise in South Asia and has continued to extend into countries like Yemen and Somalia; al-Qaeda’s top leaders are still at large, and American overreactions to even unsuccessful terrorist attacks arguably have played, however inadvertently, into the hands of the jihadists. Working against al-Qaeda and allied groups are the ramped-up campaign of drone attacks in Pakistan, increasingly negative Pakistani attitudes and actions against the militants based on their territory, which are mirrored by increasingly hostile attitudes toward alQaeda and allied groups in the Muslim world in general, and the fact that erstwhile militant allies have now also turned against al-Qaeda. This report is based on interviews with a wide range of senior U.S. counterterrorism officials at both the federal and local levels, and embracing the policy, intelligence, and law enforcement communities, supplemented by the authors’ own research.

Washington, DC: Bipartisan Policy Center’s National Security Preparedness Group (NSPG), 2010. 44p.

By Peter Neumann

The Internet has revolutionized the way all of us communicate and do business. Its benefits to people everywhere have been enormous and will continue to drive progress in practically every area of life. At the same time, it should be recognized that, while being a force for good, the Internet has also come to play an important—and, in many ways, unique—role in radicalizing homegrown and domestic terrorists. Supporters of Al Qaeda, Sovereign Citizens, white supremacists and neo-Nazis, environmental and animal liberationists, and other violent extremist groups all have embraced the Internet with great enthusiasm and vigor. They are using it as a platform to spread their ideas, connect with each other, make new recruits, and incite illegal and violent actions. We believe that this trend will continue and that future terrorist attacks against the United States and its interests will involve individuals who have been radicalized—at least in part—on the Internet. As a result, countering online radicalization should continue to be a major priority for the government and its Countering Violent Extremism (CVE) efforts. The purpose of this report is to equip policy makers with a better understanding of how the Internet facilitates radicalization, in particular within the United States; an appreciation of the dilemmas and trade-offs that are involved in countering online radicalization within the United States; and ideas and best practices for making the emerging approach and strategy richer and more effective

Washington, DC: Bipartisan Policy Center’s National Security Preparedness Group (NSPG). 2012. 56p.