In 2010, Rebecca Skloot published The Immortal Life of Henrietta Lacks, a New York Times bestseller about a poor black woman in the late stages of cancer in 1950s Baltimore whose doctor removed cervical tissue from her without her knowledge. By remaining viable outside of Lacks’s body, the cells became “immortal” and thus quite valuable; scientists using them have been able to pursue research that would have been unimaginable beforehand, leading to achievements such as the polio vaccine and advances against cancer and Parkinson’s disease.

Skloot’s book captivated readers by revealing the story of exploitation behind the development of what have become known as “HeLa cells.” Similar episodes of scientific advancement on the backs of vulnerable subjects have been exposed before, from J. Marion Sims’s gruesome mid-19th-century experiments on black slaves that laid the groundwork for the modern field of gynecology to recently uncovered evidence that in the 1940s, U.S. researchers deliberately infected Guatemalan patients, prisoners, and soldiers with syphilis to test new medications. Yet it still can be hard to believe that any scientist could be involved in... see more