 Disability theorists have worried that it seems nearly impossible, in practice, to draw a line between acceptable and unacceptable tests. Nearly all scholars agree that testing for Tay-Sachs or other diseases that lead to a short life filled with intense suffering and no hope of a cure is ethically acceptable, and nearly all agree that testing for vanity traits such as eye color would be unacceptable. But when it comes to deciding which conditions are ‘serious’ enough to warrant the availability of prenatal tests, there is little agreement. Anywhere this line is drawn risks stigmatizing those with ‘serious’ conditions and belittling the challenges faced by those with ‘unserious’ conditions (Parens and Asch 2000, Introduction). It also risks treating the ‘seriousness’ of a condition as a fixed medical fact rather than as a potentially socially malleable state of affairs. This is another reason that many scholars and advocates wish to emphasize the stigmatization of particular traits and the layers of social and economic injustice that exacerbate this stigmatization(e.g. Roberts and Jesudason 2013, Wasserman 2000).