"Biosecurity" has ballooned into an increasingly mundane aspect of human experience, serving as a catchall for the detection, surveillance, containment, and deflection of everything from epidemics and natural disasters to resource scarcities and political insurgencies. The bundling together of security measures, its associated infrastructure, and its modes of governance alongside response times underscores a new urgency of preparedness--a growing global ethos ever alert to unforeseen danger--and actions that favor risk assessment, imagined worst-case scenarios, and carefully orchestrated,...