"In the recent years, terrorism and radicalization have (unfortunately) become something of a regular topic in the news, in movies and TV shows, and even in dinnertime conversations. It seems like everyone knows something and has a theory or two to explain the growing number of terrorist attacks around the world. Some blame it on Muslims, some on the news media and the Internet, and some on the CIA and the U.S. government. It has become difficult to judge the quality of all this information. Thus, it makes sense to ask for credentials of the messengers"--

In compiling this annotated bibliography on the psychology of terrorism, the author has defined terrorism as "acts of violence intentionally perpetrated on civilian noncombatants with the goal of furthering some ideological, religious or political objective." The principal focus is on nonstate actors. The task was to identify and analyze the scientific and professional social science literature pertaining to the psychological and/or behavioral dimensions of terrorist behavior (not on victimization or effects). The objectives were to explore what questions pertaining to terrorist groups and behavior had been asked by social science researchers; to identify the main findings from that research; and attempt to distill and summarize them within a framework of operationally relevant questions. To identify the relevant social science literature, the author began by searching a series of major academic databases using a systematic, iterative keyword strategy, mapping, where possible, onto existing subject headings. The focus was on locating professional social science literature published in major books or in peer-reviewed journals. Searches were conducted of the following databases October 2003: Sociofile/Sociological Abstracts, Criminal Justice Abstracts (CJ Abstracts), Criminal Justice Periodical Index (CJPI), National Criminal Justice Reference Service Abstracts (NCJRS), PsycInfo, Medline, and Public Affairs Information Service (PAIS). Three types of annotations were provided for works in this bibliography: Author's Abstract -- this is the abstract of the work as provided (and often published) by the author; Editor's Annotation -- this is an annotation written by the editor of this bibliography; and Key Quote Summary -- this is an annotation composed of "key quotes" from the original work, edited to provide a cogent overview of its main points.

Terrorism and radicalization came to the forefront of news and politics in the US after the unforgettable attacks of September 11th, 2001. When George W. Bush famously asked "Why do they hate us?," the President echoed the confusion, anger and fear felt by millions of Americans, while also creating a politicized discourse that has come to characterize and obscure discussions of both phenomena in the media. Since then the American public has lived through a number of domestic attacks and threats, and watched international terrorist attacks from afar on television sets and computer screens. The anxiety and misinformation surrounding terrorism and radicalization are perhaps best detected in questions that have continued to recur in the last decade: "Are terrorists crazy?"; "Is there a profile of individuals likely to become terrorists?"; "Is it possible to prevent radicalization to terrorism?" Fortunately, in the two decades since 9/11, a significant body of research has emerged that can help provide definitive answers. As experts in the psychology of radicalization, Sophia Moskalenko and Clark McCauley propose twelve mechanisms that can move individuals, groups, and mass publics from political indifference to sympathy and support for terrorist violence. Radicalization to Terrorism: What Everyone Needs to Know synthesizes original and existing research to answer the questions raised after each new attack, including those committed by radicalized Americans. It offers a rigorously informed overview of the insight that will enable readers to see beyond the relentless news cycle to understand where terrorism comes from and how best to respond to it.

Gathers essays by area specialists to provide an assessment of contemporary American extremism, exploring the views of each group in context and examining the tension between civil liberties and possible threats to society.

This report seeks to better understand why the Islamic State of Iraq and the Levant (ISIL) has been more successful than its predecessor organization, al Qaeda, in recruiting individuals within the United States. The authors consider whether the demographic profile of individuals drawn to foreign terrorist organizations (FTOs) has changed over time or whether new groups are more successful appealing to the same segment of the population. They take an expansive approach, analyzing all known cases of U.S. citizens or persons within the United States connected to a FTO with Islamist orientation since September 11, 2001, and use consistent criteria for inclusion and exclusion to identify individuals meeting this definition, and coding multiple demographic variables. They then conduct a quantitative analysis of the entire population, as well as the population broken down by group and by role (i.e., foreign fighters, homegrown violent extremists, etc.). Their findings reveal that the number of U.S. recruits drawn to al Qaeda and its affiliate groups has declined precipitously, commensurate with the ascent of ISIL, and that the average terrorist recruited by ISIL is not only younger and less educated but more likely to be African American/black or Caucasian/white and a U.S.-born citizen. Historically, terrorist recruits were more likely immigrants of Middle Eastern descent. These findings are relevant to U.S. defense, intelligence, and law enforcement officials, as well as to civilian academic and policymaking audiences, who may be unaware of this altered demographic profile, a perception that could bias counterterrorism policy and efforts.

Terrorism and ideologically inspired violence are persistent and serious threats to U.S. national security. This report uses interviews to explore why and how 32 individuals joined extremist organizations and how some of them exited these groups.