Аннотация:This article seeks to construct a comparative investigation of the role and application of militaristic metaphors in three contested areas of science-society discourse (invasive species, foot-and-mouth disease, and Severe Acute Respiratory Syndrome). It examines differences in the uses of metaphors and the role played by the emergence or neglect of critical linguistic engagement in these areas of public concern. It contributes to debates about the relationship between language use, policy, and the public understanding of science and technology. It demonstrates that militaristic metaphors are still part of a pervasive, but by no means inevitable, mode of science and policy communication.