Debates the space exploration issues of proper goals of space exploration, which programs should be pursued, the elimination of NASA, and the appropriateness of using space for warfare.

An anthology of articles debating issues related to America's cities, including the decline of the cities, measures to improve urban housing, the reduction of homelessness and urban crime, and how cities can be improved. Includes critical thinking activities.

A collection of articles offering opinions for and against suchenergy issues as whether fossil fuels should be replaced, the uses of nuclear power, alternatives to gasoline-powered cars, andthe need for a national energy policy.

Presents opposing viewpoints on racism in America and how serious this problem is.