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The past 25 years have seen a major paradigm shift in the field of violence prevention, from the assumption that violence is inevitable to the recognition that violence is preventable. Part of this shift has occurred in thinking about why violence occurs, and where intervention points might lie. In exploring the occurrence of violence, researchers have recognized the tendency for violent acts to cluster, to spread from place to place, and to mutate from one type to another. Furthermore, violent acts are often preceded or followed by other violent acts. In the field of public health, such a process has also been seen in the infectious disease model, in which an agent or vector initiates a specific biological pathway leading to symptoms of disease and infectivity. The agent transmits from individual to individual, and levels of the disease in the population above the baseline constitute an epidemic. Although violence does not have a readily observable biological agent as an initiator, it can follow similar epidemiological pathways. On April 30-May 1, 2012, the Institute of Medicine (IOM) Forum on Global Violence Prevention convened a workshop to explore the contagious nature of violence. Part of the Forum's mandate is to engage in multisectoral, multidirectional dialogue that explores crosscutting, evidence-based approaches to violence prevention, and the Forum has convened four workshops to this point exploring various elements of violence prevention. The workshops are designed to examine such approaches from multiple perspectives and at multiple levels of society. In particular, the workshop on the contagion of violence focused on exploring the epidemiology of the contagion, describing possible processes and mechanisms by which violence is transmitted, examining how contextual factors mitigate or exacerbate the issue. Contagion of Violence: Workshop Summary covers the major topics that arose during the 2-day workshop. It is organized by important elements of the infectious disease model so as to present the contagion of violence in a larger context and in a more compelling and comprehensive way.

Although a range of program and policy responses to youth gangs exist, most are largely based on suppression, implemented by the police or other criminal justice agencies. Less attention and fewer resources have been directed to prevention and intervention strategies that draw on the participation of community organizations, schools, and social service agencies in the neighborhoods in which gangs operate. Also underemphasized is the importance of integrating such approaches at the local level. In this volume, leading researchers discuss effective intervention among youth gangs, focusing on the ideas behind, approaches to, and evidence about the effectiveness of community-based, youth gang interventions. Treating community as a crucial unit of analysis and action, these essays reorient our understanding of gangs and the measures undertaken to defeat them. They emphasize the importance of community, both as a context that shapes opportunity and as a resource that promotes positive youth engagement. Covering key themes and debates, this book explores the role of social capital and collective efficacy in informing youth gang intervention and evaluation, the importance of focusing on youth development within the context of community opportunities and pressures, and the possibilities of better linking research, policy, and practice when responding to youth gangs, among other critical issues.

Reviews innovations in policing over the last four decades, bringing together top policing scholars to discuss whether police should adopt these approaches.

For years proposals for gun control and the ownership of firearms have been among the most contentious issues in American politics. For public authorities to make reasonable decisions on these matters, they must take into account facts about the relationship between guns and violence as well as conflicting constitutional claims and divided public opinion. In performing these tasks, legislators need adequate data and research to judge both the effects of firearms on violence and the effects of different violence control policies. Readers of the research literature on firearms may sometimes find themselves unable to distinguish scholarship from advocacy. Given the importance of this issue, there is a pressing need for a clear and unbiased assessment of the existing portfolio of data and research. Firearms and Violence uses conventional standards of science to examine three major themes - firearms and violence, the quality of research, and the quality of data available. The book assesses the strengths and limitations of current databases, examining current research studies on firearm use and the efforts to reduce unjustified firearm use and suggests ways in which they can be improved.

Originally published in 2007, The Israel Lobby and U.S. Foreign Policy, by John Mearsheimer of the University of Chicago and Stephen M. Walt of Harvard's John F. Kennedy School of Government, provoked both howls of outrage and cheers of gratitude for challenging what had been a taboo issue in America: the impact of the Israel lobby on U.S. foreign policy. A work of major importance, it remains as relevant today as it was in the immediate aftermath of the Israel-Lebanon war of 2006. Mearsheimer and Walt describe in clear and bold terms the remarkable level of material and diplomatic support that the United States provides to Israel and argues that this support cannot be fully explained on either strategic or moral grounds. This exceptional relationship is due largely to the political influence of a loose coalition of individuals and organizations that actively work to shape U.S. foreign policy in a pro-Israel direction. They provocatively contend that the lobby has a far-reaching impact on America's posture throughout the Middle East―in Iraq, Iran, Lebanon, and toward the Israeli-Palestinian conflict―and the policies it has encouraged are in neither America's national interest nor Israel's long-term interest. The lobby's influence also affects America's relationship with important allies and increases dangers that all states face from global jihadist terror. The publication of The Israel Lobby and U.S. Foreign Policy led to a sea change in how the U.S-Israel relationship was discussed, and continues to be one of the most talked-about books in foreign policy.