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Explores the scientific principles and ethical issues of genetic engineering.

Explains globalization, discusses its history and causes, and describes its impact on the world.

Discusses the extent and effects of human trafficking, the term that is used today for modern-day slavery, which takes place in almost every country in the world.

Human trafficking - the official term for the modern-day slave trade - consists of buying and selling people with the intent of exploiting them through forced labor or sexual acts.

Offers a comprehensive overview of global warming, explaining what it is and why it has become a key world issue, exploring how it impacts the United States and other countries, and offering primary source documents and research tools that provide further information on the topic.

Explores genocide and international justice in the United States and abroad; and provides related primary source documents and research tools.

A discussion of America's role in the world, reviewing the history of American foreign policy and providing global perspectives on the U.

Explores the history of biological weaponry from ancient and medieval times, the development of chemical and nuclear weapons, the use of the atomic bomb over Japan, the Cold War arms race, and the increased production of weapons of mass destruction by other world powers.

Examines the controversies and challenges surrounding the militarization of space, with primary source documents exploring the issue, essays discussing United States and international opinions on the matter, and information on what it might mean for the future.

Discusses various issues related to toxic waste, covering exposure to toxic organic chemicals, lead and mercury poisoning, stockpiles of toxic chemicals, and toxic chemicals in the home, and including two case studies for each as well as advice on what that reader can do to help.

Discusses issues relating to the exploitation of children including poverty, child labor in agriculture as well as in towns and cities, and hidden forms of child abuse.

Identifies the energy-related challenges of the early twenty-first century, looks at how the United States and other nations are responding to the problems, and provides a selection of related reference information, including case studies, primary source documents, biographies, statistics, and a chronology.

Reviews the history of the epidemic of AIDS and HIV, its impact, and the continuing efforts to combat it worldwide.

Explains some of the local and international conflicts that have occurred due to clashes between fundamentalists.

Explains the different categories of refugees, the history and roots of the problem, and the responses around the world to influxes of refugees.