It is science’s duty to help lift the fog of war

Abstract

The health consequences of Agent Orange exposure during the Vietnam War remain incompletely resolved more than fifty years later, reflecting failures at the intersection of medicine, ethics, and military strategy. Early toxicological concerns about 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) were insufficiently addressed, and the urgency of achieving short-term tactical goals delayed protective action. Evidence from U.S., Vietnamese, and Korean veteran cohorts demonstrates associations with multiple malignancies, metabolic disorders, neurodegenerative conditions, idiopathic pulmonary fibrosis, and congenital anomalies, with suggestive evidence for other chronic diseases. Environmental persistence of TCDD in contaminated soils and the food chain poses ongoing risks, potentially affecting subsequent generations. Political and legislative contexts have significantly influenced recognition, research priorities, and remediation efforts, underscoring the need for transparent, precautionary, and transnational public health strategies in future conflict-related chemical exposures. Science bears a moral duty to “lift the fog of war” by integrating rigorous research, environmental remediation, and ethical accountability.