"From the one of Time magazine's "100 Most Influential People in the World"-- and bestselling author of Warped Passages--an exhilarating and readable overview of the latest ideas in physics and a rousing defense of the role of science in our lives"--
Provides explanations of the science behind issues facing the United States during the early twenty-first century, discussing dirty bombs, energy alternatives, radioactivity, space exploration, and global warming.