>"I think many people don't appreciate the danger of false positives." Yes, but to most people, we compare that danger with the danger of a positive test that

>"I think many people don't appreciate the danger of false positives." Yes, but to most people, we compare that danger with the danger of a positive test that never gets done. More information is never a bad thing. And I'm reasonably sure that for almost every test that can have a dangerous false-positive, there is also a corresponding test that can corroborate those results, if not detect the false-positive.