The definition and understanding of "terrorism" is in a state of unprecedented evolution. No longer are acts of terrorism rare and far-flung. Following the horrendous attacks on the World Trade Center and the Pentagon, U.S. citizens have had their eyes opened to a new world where this nightmare stalks the daily news and is never far from consciousness.

Attacking Terrorism brings together some of the world's finest experts, people who have made the study of this rising menace their life's work, to provide a comprehensive picture of the challenges and opportunities of the...