There are so many instances of the medical community, with the cooperation of government agencies, experimenting on unknowing civilians. There's George Jervis, for example, at Letchworth Village--a sprawling institution that housed the disabled. He used Letchworth as his personal laboratory and conducted experiments on the residents. And then, also at Letchworth, Hilary Koprowski tested a completely unproven polio vaccine. I guess, when I read @calluna's piece, this information was floating around somewhere in my head and, voila...:)