Rebekah Stewart, a nurse at the US Public Health Service, got a call last April that brought her to tears. Other public health officers, who worked at Guantánamo in the past year, described conditions there for the detainees, some of whom first learned they were in Cuba from the nurses and doctors sent to care for them. Although the Public Health Service is not a branch of the US military, its uniformed officers—roughly 5,000 doctors, nurses, and other health workers—act like stethoscope-wearing soldiers in emergencies. After dodging Guantánamo, Stewart was instructed to report to an ICE detention center in Texas. “Public health officers are being asked to facilitate a man-made humanitarian crisis,” she said.