This report describes homegrown violent jihadists and the plots and attacks that have occurred since 9/11. For this report, "homegrown" and "domestic" are terms that describe terrorist activity or plots perpetrated within the United States or abroad by American citizens, legal permanent residents, or visitors radicalized largely within the United States. The report also discusses the radicalization process and the forces driving violent extremist activity. It analyzes post-9/11 domestic jihadist terrorism and describes law enforcement and intelligence efforts to combat terrorism and the challenges associated with those efforts. It also outlines actions underway to build trust and partnership between community groups and government agencies and the tensions that may occur between law enforcement and engagement activities.

Between May 2009 and August 2010, arrests were made for 19 "homegrown," jihadist-inspired terrorist plots by American citizens or legal permanent residents of the United States. The apparent spike in such activity after May 2009 suggests that at least some Americans - even if a tiny minority - continue to be susceptible to ideologies supporting a violent form of jihad. This report describes homegrown violent jihadists and the plots and attacks that have occurred since 9/11. This report also provides official definitions for terms such as "homegrown," "jihadist," and "violent jihadist." The report also discusses the radicalization process and the forces driving violent extremist activity. It analyzes post-9/11 domestic jihadist terrorism, describes law enforcement and intelligence efforts to combat terrorism and the challenges associated with those efforts. It also outlines actions underway to build trust and partnership between community groups and government agencies and the tensions that may occur between law enforcement and engagement activities.

This report describes homegrown violent jihadists and the plots and attacks that have occurred since 9/11. For this report, "homegrown" describes terrorist activity or plots perpetrated within the United States or abroad by American citizens, lawful permanent residents, or visitors radicalized largely within the United States. The term "jihadist" describes radicalized individuals using Islam as an ideological and/or religious justification for their belief in the establishment of a global caliphate, or jurisdiction governed by a Muslim civil and religious leader known as a caliph. The term "violent jihadist" characterizes jihadists who have made the jump to illegally supporting, plotting, or directly engaging in a violent terrorist activity.The report also discusses the radicalization process and the forces driving violent extremistactivity. It analyzes post-9/11 domestic jihadist terrorism and describes law enforcement andintelligence efforts to combat terrorism and the challenges associated with those efforts.Appendix A provides details about each of the post-9/11 homegrown jihadist terrorist plots andattacks.There is an "executive summary" at the beginning that summarizes the report's findings.

This new and important book discusses the radicalisation process and the forces driving violent extremist activity. It analyses post-9/11 domestic Jihadist terrorism, describes law enforcement and intelligence efforts to combat terrorism and the challenges associated with those efforts. This book also outlines actions underway to build trust and partnership between community groups and government agencies and the tensions that may occur between law enforcement and engagement activities.

The attacks in Paris in January and November 2015 heralded the beginning of a new wave of terrorism - one rooted in the ongoing conflict in Syria and Iraq. As ISIS seeks to expand its reach in the Middle East, its territory serves as a base for training and operations for a new generation of jihadis. Thousands of young people from the West, primarily from Europe, have travelled to join ISIS, re-emerging as hardened fighters with military training and a network of international contacts. Many of these have now returned to their homelands, where it is feared they are planning a new series of brutal attacks. Peter R. Neumann here explains the phenomenon of the 'new jihadis', and shows why the threat of terrorism in the West is greater than ever before. Based on interviews and previously-unseen material, Neumann provides an essential introduction to one of the greatest crises of our time

Crenshaw and LaFree examine "how we have dealt with the terror threat over the years. They [explore] why it is so difficult to create policy to counter terrorism. The foes are multiple and often amorphous, the study of the field dogged by disagreement on basic definitional and methodological issues, and the creation of policy hobbled by an exacting standard: the counterterrorist must succeed all the time; the terrorist only once"--Amazon.com.

How big is the threat posed by American ISIS supporters? How many Americans have joined ISIS and how many want to return to the United States? Compared to participation by Americans in other jihadist groups, the scale of American involvement in jihadist activity today is unprecedented. This book, from one of the leading counter-terror centres, draws on first-hand interviews with former American Islamic State members and law enforcement officials who tracked them, and includes detailed analysis of the court cases against them and their social media presence. Homegrown reveals how and why ISIS was able to radicalize and recruit a new generation of jihadist sympathizers in America.