By Jess T. Ford

In recent years, violence along the U.S.-Mexico border has escalated dramatically, due largely to the Mexican government's efforts to disrupt Mexican drug trafficking organizations (DTO). U.S. officials note the violence associated with Mexican DTOs poses a serious challenge for U.S. law enforcement, threatening citizens on both sides of the border, and U.S. and Mexican law enforcement officials generally agree many of the firearms used to perpetrate crimes in Mexico are illicitly trafficked from the United States across the Southwest border. GAO was asked to examine (1) data on the types, sources, and users of these firearms; (2) key challenges confronting U.S. government efforts to combat illicit sales of firearms in the United States and stem the flow of them into Mexico; (3) challenges faced by U.S. agencies collaborating with Mexican authorities to combat the problem of illicit arms; and (4) the U.S. government's strategy for addressing the issue. GAO analyzed program information and firearms data and met with U.S. and Mexican officials on both sides of the border.

Washington, DC: U.S. Government Accountability Office, 2009. 83p.

By U.S. Bureau of Justice Assistance

Throughout the United States, violence involving firearms remains at an alarmingly high rate. The Federal Bureau of Investigation’s 1996 Uniform Crime Reports indicates that firearms were used in 29 percent of all murders, robberies, and aggravated assaults in the United States in that year. According to the Centers for Disease Control and Prevention, firearms-related violence is a leading cause of injury-related death, second only to automobile-related fatalities. To stop the illegal flow of firearms to persons with criminal intent, law enforcement must develop strategies to address problems with gun dealers, stolen weapons, and illegal purchasers and suppliers. Furthermore, law enforcement cannot ignore the role that both nonlicensed and dishonest licensed firearms dealers play in the illegal movement of weapons. To address the illegal firearms trafficking issue, the Bureau of Justice Assistance created the Firearms Trafficking Program in fiscal year 1993. Three different initiatives were funded under this program: the Firearms Licensee Compliance Program, the Firearms Investigative Task Force Program, and the Innovative Firearms Program. Demonstration sites under each of these three initiatives were visited to identify goals, lessons learned, and promising practices and approaches of each project.

Washington, DC: U.S. Bureau of Justice Assistance, 2000. 96p.

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 Jytte Klausen

This report analyses the networks and organizations that mobilize and direct Americans for jihadist action, or that raise money in the US for Hamas and Hezbollah. The study employs a quasi-experimental method using a control-case design, comparing the network structures of American terrorism offenders inspired by Hezbollah with those of Sunni extremist groups aligned with Al Qaeda, and in recent years ISIL.

Washington, DC: U.S. Department of Justice, 2016. 71p.

By Mark Hamm and Ramon Spaaj

This research offers the largest and most comprehensive database ever created on lone wolf terrorism, along with a theory-informed case study component based on direct contact with imprisoned lone wolf terrorists, and a comparative analysis distinguishing lone wolves from those who undergo radicalization in a group setting. Strictly in terms of lethality, the data indicate that lone wolf terrorism in America is not on the rise. Although lone wolf terrorism may not be increasing, it is undergoing two important changes in modus operandi. First, uniformed police and military personnel have become the primary target of lone wolf terrorists. Second, consistent with the relaxation of U.S. gun laws since the 1990s and the recent trend in mass shootings, the lone wolf’s preferred weaponry is now a staggering range of high-velocity firearms. While there is no standard profile of the lone wolf terrorist, most of them are unemployed, single white males with a criminal record. Compared to members of terrorist groups, lone wolves are older, less educated and more prone to mental illness. The study validates a series of commonalities associated with pathways to radicalization for lone wolf terrorists. The radicalization model indicates that lone wolf terrorism begins with a combination of personal and political grievances which form the basis for an affinity with online sympathizers. This is followed by the identification of an enabler, followed by the broadcasting of terrorist intent. The final commonality is a triggering event, or the catalyst for terrorism. The ability of law enforcement and intelligence communities to detect and prevent lone wolf terrorism demands a clear understanding of these radicalization processes. Such insight may provide investigators with a sort of detection system, or “signatures”—as minimal as they may appear—that an individual with a terrorist intent will demonstrate in preparing for an attack. Crucial to this understanding is the broadcasting of intent. While lone wolves physically isolate from society, at the same time they seek recognition for their causes through spoken statements and threats, manifestos, e-mail messages, texting and videotaped proclamations. Focusing on this kind of immediate objective of radicalization among lone wolves, rather than on their underlying grievances, may sharpen our focus on the dangers posed by lone wolf terrorism.

Indiana State University, 2015. 28p.

By Christian Kaunert, Alex MacKenzie, and Sarah Léonard

After the death of Osama Bin Laden and the demise of Al Qaeda, the EU is increasingly threatened by new jihadi terrorist groups such as ISIS, as exemplified by recent terror attacks on Paris, Brussels, Nice, Berlin and Manchester. This book investigates the role of the EU in dealing with such groups as part of its counter-terrorism efforts, by outlining the increasing role of the EU as an external counter-terrorism actor.

Cheltenham, UK: Edward Elgar Publishing, 2022. 192p.

By Institute for Economics & Peace IEP

This is the ninth edition of the Global Terrorism Index (GTI). The report provides a comprehensive summary of the key global trends and patterns in terrorism over the last decade. The calculation of the GTI score takes into account not only deaths, but also incidents, hostages, and injuries from terrorism, weighted over a five-year period. The GTI report is produced by the Institute for Economics & Peace (IEP) using data from TerrorismTracker and other sources. TerrorismTracker provides event records on terrorist attacks since 1 January 2007. The dataset contains over 60,500 terrorist incidents for the period 2007 to 2021.

Sydney: IEP, 2022. 99p.

By Jeffrey William Lewis

"The only comprehensive history available of suicide bombing from its origins in Imperial Russia to the current day, The Business of Martyrdom examines the bombers, their societies, and the organizations that train and sponsor them. Writing for a broad audience, Lewis draws on the history and philosophy of technology in order to explain the evolution and diffusion of suicide bombing across time and from region to<span class='showMoreLessContentElement' style='display: none;'> region. Lewis presents a model for suicide bombing that integrates individual psychology, organizational motivations, and social support. He argues that suicide bombing is a technology that has been invented and re-invented at different times in different areas, but always for the same purpose: resolving a mismatch in military capabilities between antagonists by utilizing the available cultural and human resources."

Annapolis, MD: Naval Institute Press, 2012. 368p.

By V.G. Julie Rajan

Women Suicide Bombers explores why cultural, media and political reports from various geographies present different information about and portraits of the same women suicide bombers. The majority of Western media and sovereign states engaged in wars against groups deploying bombings tend to focus on women bombers' abnormal mental conditions; their physicality-for example, their painted fingernails or their beautiful eyes; their sexualities; and the various ways in which they have been victimized by their backward Third World cultures, especially by "Islam." In contrast, propaganda produced by rebel groups deploying women bombers, cultures supporting those campaigns, and governments of those nations at war with sovereign states and Western nations tend to project women bombers as mythical heroes, in ways that supersedes the martyrdom operations of male bombers.

London: Routledge, 2012. 400p.

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.

Edited by Diego Gambetta

This book attempts to shed light on suicide missions and provide answers to the questions we all ask. Are these the actions of aggressive religious zealots and unbridled, irrational radicals or is there a logic driving those behind them? Are their motivations religious or has Islam provided a language to express essentially political causes? How can the perpetrators remain so lucidly effective in the face of certain death? And do these disparate attacks have something like a common cause? It focuses on four main instances: the Kamikaze, missions carried out by the Tamil Tigers in the civil war in Sri Lanka, the Lebanese and Palestinian groups in the Middle East, and the al-Qaeda 9/11 attack on the World Trade Center and the Pentagon. For more than two years, the authors have pursued an unprejudiced inquiry, investigating organizers and perpetrators alike of this extraordinary social phenomenon. Close comparisons between a whole range of cases raise challenging further questions: If suicide missions are so effective, why are they not more common? If killing is what matters, why not stick to ‘ordinary’ violent means? Or, if dying is what matters, why kill in the process?

Oxford, UK: New York: Oxford University Press, 2005. 452p.

By Talal Asad

Like many people in America and around the world, Talal Asad experienced the events of September 11, 2001, largely through the media and the emotional response of others. For many non-Muslims, "the suicide bomber" quickly became the icon of "an Islamic culture of death"—a conceptual leap that struck Asad as problematic. Is there a "religiously-motivated terrorism?" If so, how does it differ from other cruelties? What makes its motivation "religious"? Where does it stand in relation to other forms of collective violence?

Drawing on his extensive scholarship in the study of secular and religious traditions as well as his understanding of social, political, and anthropological theory and research, Asad questions Western assumptions regarding death and killing. He scrutinizes the idea of a "clash of civilizations," the claim that "Islamic jihadism" is the essence of modern terror, and the arguments put forward by liberals to justify war in our time. He critically engages with a range of explanations of suicide terrorism, exploring many writers' preoccupation with the motives of perpetrators. In conclusion, Asad examines our emotional response to suicide (including suicide terrorism) and the horror it invokes.

On Suicide Bombing is an original and provocative analysis critiquing the work of intellectuals from both the left and the right. Though fighting evil is an old concept, it has found new and disturbing expressions in our contemporary "war on terror." For Asad, it is critical that we remain aware of the forces shaping the discourse surrounding this mode of violence, and by questioning our assumptions about morally good and morally evil ways of killing, he illuminates the fragile contradictions that are a part of our modern subjectivity.

New York: Columbia University Press, 2007. 138p.

By Mark S. Hamm

Today, there are thousands of followers of non-Judeo-Christian faith groups in American correctional institutions. Research suggests that many of these prisoners began their incarceration with little or no religious calling, but converted during their imprisonment. According to the FBI, some of these prisoners may be vulnerable to terrorist recruitment. The purpose of this research is three-fold: (1) to collect baseline information on nontraditional religions in United States correctional institutions; (2) to identify the personal and social motivations for prisoners’ conversions to these faith groups; and (3) to assess the prisoners’ potential for terrorist recruitment. The study creates a starting point for more in-depth research on the relationship between prisoners’ conversion to nontraditional religions and extremist violence. The work is organized into five chapters. Chapter 1 presents a comprehensive review of the literature bearing on the research objectives. This includes an historical overview of Moorish Science Temple and the Nation of Islam, American versions of Islam that have played an important role in radicalizing prisoners through religious identity. The review shows that there are currently opposing views about Islam in prison. One side of the debate takes the position that the Muslim faith offers prisoners a viable path to rehabilitation. The opposing view claims that Islamic prisoners are a threat to U.S. security. Criminological evidence shows that the greatest danger to security is found in mutating forms of “Prison Islam.” Other evidence indicates that the threat emanates from dozens of high-profile terrorists who are already serving lengthy sentences in American correctional facilities.

Terre Haute, IN: Department of Criminology, Indiana State University, 2007. 129p.

By Roger Douglas

Roger Douglas compares responses to terrorism by five liberal democracies—the United States, the United Kingdom, Canada, Australia, and New Zealand—over the past 15 years. He examines each nation's development and implementation of counterterrorism law, specifically in the areas of information-gathering, the definition of terrorist offenses, due process for the accused, detention, and torture and other forms of coercive questioning.

Douglas finds that terrorist attacks elicit pressures for quick responses, often allowing national governments to accrue additional powers. But emergencies are neither a necessary nor a sufficient condition for such laws, which may persist even after fears have eased. He argues that responses are influenced by both institutional interests and prior beliefs, and complicated when the exigencies of office and beliefs point in different directions. He also argues that citizens are wary of government's impingement on civil liberties and that courts exercise their capacity to restrain the legislative and executive branches. Douglas concludes that the worst antiterror excesses have taken place outside of the law rather than within, and that the legacy of 9/11 includes both laws that expand government powers and judicial decisions that limit those very powers.

Ann Arbor, MI: University of Michigan Press, 2014. 337p.

By David M. Kennedy; Anthony A. Braga; Anne M. Piehl; Elin J. Waring

The Boston Gun Project Working Group began meeting in January 1995, and by the fall of that year, the project's basic problem assessment had been completed and the elements of what is now known as the Operation Ceasefire intervention mapped out; implementation began in early 1996. The two main elements of Ceasefire were a direct law enforcement attack on illicit firearms traffickers who supplied youths with guns, as well as an attempt to generate a strong deterrent to gang violence. The effort to counter illicit firearms trafficking expanded the focus of local, State, and Federal authorities to include intrastate firearms trafficking in Massachusetts in addition to interstate trafficking. Attention was given to traffickers of the makes and calibers of guns most often used by gang members. Further, the effort focused on traffickers of guns that had short time-to-crime intervals and were thus most likely to have been trafficked. The project attempted to restore obliterated serial numbers of confiscated guns to aid investigations of trafficking. Enforcement priorities were enhanced through an analysis of data generated by the Boston Police Department and the Federal Bureau of Alcohol, Tobacco, and Firearms' comprehensive tracing of crime guns and by developing leads from the systematic debriefing of gang-affiliated arrestees or those involved in violent crime. The effort to deter violent gang behavior involved the targeting of gangs engaged in violent behavior; reaching out directly to members of the targeted gangs; delivering an explicit message that violence would not be tolerated; and by using every legal means to apply sanctions for violent behavior. The evaluation analysis of impacts within Boston associated with the Ceasefire intervention followed a basic one-group time-series design. In addition, a nonrandomized quasi-experiment was used to compare youth homicide trends in Boston with those in other large cities in the United States. The time series showed a 63-percent reduction in the mean monthly number of youth homicide victims from a pretest mean of 3.5 youth homicides per month to a posttest mean of 1.3 youth homicides per month. Analyses suggest that the Ceasefire intervention was associated with statistically significant reductions in all time series.

Washington, DC: U.S. National Institute of Justice, 2001. 77p.

Edited by Diego Muro

Building resilience to violent extremism has become a matter of great concern for European cities that have experienced attacks or that fear experiencing them in the future. Mayors, municipal leaders and other local authority representatives are leading efforts to empower city governments across the EU and develop pragmatic and non-ideological policies. As increasing numbers of citizens rank violent extremism as one of their top worries, urban centres have effectively become the front line of the fight against radicalisation. It is in European cities where transnational extremist threats take shape in the forms of hate speech, recruitment networks, radical cells and terrorist attacks, and it is also in European cities where evidence-based plans to counter and prevent violent extremism at local level need urgently to be devised. Cities are obvious settings in which to implement the motto “think globally and act locally”.

Barcelona: Barcelona Centre for International Affairs, 2017. 118p.

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.

By Peter Neumann

Last September, we released a report, Assessing the Terrorist Threat, on the evolving nature of this threat to the United States. We concluded that the U.S. government had not adequately addressed the radicalization of homegrown terrorists. We set forth several pressing policy questions, including the fundamental question of who within the government is responsible for identifying radicalization and interdicting attempts at recruitment. This report seeks to answer those questions and provide concrete policy recommendations for a counter-radicalization strategy – the elements of which should be implemented not just by the federal government, but by state and local officials and community organizations.

Washington, DC: Bipartisan Policy Center’s National Security Preparedness Group (NSPG), 2011. 56p.

By Mohammed Abu-Nimer

The emergence of “violent extremism” (VE)2 as a central framework and priority adopted by most Western and non-Western government agencies. It has become the primary lens through which to describe many of their activities, especially in conflict areas around the world, even when the issues are not or are only remotely related. There is no doubt that VE narratives, especially those promoting violence in the name of Islam spread by groups such as Al-Qaeda, Al-Shabab, Taliban and Daesh, have gained strength and visibility in the last two decades (regardless of the differences in the groups’ motivation or type of justification – be it nationalism, anti-Western intervention or religion). However, it is an overstatement to solely explain the motivation for endorsing or adopting VE in Muslim societies as a result of theological factors; as explained below, there are many other factors besides religious identity and theological reasoning contributing to the phenomenon. Nevertheless, it is possible to trace historical factors that led to the creation of such groups in predominantly Muslim countries. In Afghanistan, for example, one such factor is rooted in the Cold War dynamics between the United States (US) and the USSR at the time of the Soviet invasion of Afghanistan in 1979. To fight communism, the US government mobilised local Afghan communities, which included some fighters who subsequently employed extreme Islamic religious narratives. The US’s fervent desire to prevent the spread of communism thus led to the arming of members of Afghan society who later utilised the concept of jihad against non-believers in certain Sunni interpretations.

Berlin: Berghof Foundation, 2018. 21p.