In this study of criminality within the radical environmental movement, Liddick promises to pursue and present research findings in an evenhanded manner, noting that the term terrorism does not seem to be warranted in descriptions of radical environmentalist tactics. Nonetheless, he refers to all such acts as eco-terrorism and concludes by speculating that some ecoradicals would not hesitate to destroy humankind in order to save the planet and its nonhuman inhabitants. The author offers a typology of radical tactics along with data on recent actions that suggest increasing tendencies toward violence, in combination with a public opinion survey and interviews with accused or incarcerated activists that show some attitudinal support for his thesis….[t]his book provides a decent introduction to its subject. Upper-division undergraduates through faculty.