I literally just wrote a paper on the ongoing debate within the medical community on whether or not Agent Orange is indeed a carcinogen and has had long term effects on soldiers. In fact.....here's a quote from my research paper
Not to say that Agent Orange isn't a caustic, toxic substance, but it wasn't used on people, wasn't targeting people, and the long term negative effects weren't known at the time. Additionally, it was used in concordance with applicable international law.The Center for Disease Control conducted a study of the long term effects of Agent Orange on Vietnam Veterans and found the following “Results are again equivocal. Parties on both sides of the continuing debate about the regulation of dioxin exposure will no doubt cite this work in support of their positions. Some cancers were indeed more frequent in an exposed group than among controls, but the differences were for the most part not statistically significant, and the exceptions might be explainable by a combination of small, unavoidable biases in the data and the multiple post hoc comparisons. (Examine enough data at the usual 5 percent level of significance, and about 1 time in 20 you will find a statistically significant result where there is no real effect.) But a simple view that the results are inconclusive does not capture the whole impact of this study. ...The hypothesis that low exposures are entirely safe for humans is distinctly less tenable now than before. ... In short, it is conceivable, although by no means certain that we shall in time converge on a middle position in which dioxin is accepted as a human carcinogen, but one that does not have the extreme potency observed in rodents." (Michael M. Simpson & Samuel Merril, 1991). At the time that this study was conducted, it was agreed that Agent Orange had long term negative health effects, but the severity of which was still under debate.