the possibility of large-scale radioactive contamination. Weinberg believes that solar energy and other "clean" approaches should be pushed; but none of them, he argues, can fully substitute for the "nuclear enter-prise." Here he reviews the history of atomic power and suggests what must be done to ensure its future.

Alvin M.Weinberg
A 1-million-kilowatt, pressurized-water nuclear reactor- the type widely used in the United States today-contains 15 billion curies of radioactivity. T...