(From the article): "[T]he Havasupai Indians of Arizona won a court case in 2010 to take back blood samples that they argued were being used for genetic tests

(From the article): "[T]he Havasupai Indians of Arizona won a court case in 2010 to take back blood samples that they argued were being used for genetic tests to which they didn’t consent." Personally, I don't know that I would care if somebody was running genetic tests on my blood. However, the idea that some scientist somewhere might learn something about you that you don't know does creep some people out.