In recent years, security actors have become increasingly concerned with health issues. This book reveals how understandings of race, sexuality and gender are produced/reproduced through healthcare policy. Analysing the plasma of paid Mexicana/o donors in the US, airport vomit in Ebola epidemics and the semen of soldiers with genitourinary injuries, this book shows how security practices focus upon governing bodily fluids. Using a variety of critical scholarship – feminist technoscience, queer studies and critical race studies – this book uses fluids to reveal unequal distributions of life and death.