Evaluating the Lives of Others.

the need for treatment, they choose the risk of having to treat an affected fetus over the risk of having to reject an affected embryo. I regard this as the morally better choice (Wasserman and Asch 2006); it manifests a preference for qualified acceptance over categorical rejection. But, to end on a concurring note, even this limited virtue cannot be found in the choice made by prospective parents who employ gene-editing for enhancement. In seeking a “better” child than mere selection could yield, they display a reluctance to parent an unenhanced child. With Sparrow, I think their decision would manifest a morally unattractive perfectionism.