Disagreement about the properattitude toward disability proliferates. Yetlittle attention has been paid to an importantmeta-question, namely, whether ``disability'' isan essentially contested concept. If so, recentdebates between bioethicists and the disabilitymovement leadership cannot be resolved. Inthis essay I identify some of the presumptionsthat make their encounters so contentious. Much more must happen, I argue, for anydiscussions about disability policy andpolitics to be productive. Progress depends onconstructing a neutral conception ofdisability, one that neither devaluesdisability nor implies that persons withdisabilities are inadequate. So, (...) first, I clearaway the conceptual underbrush that makes usthink our idea of disability must bevalue-laden. Second, I sketch someconstituents of, and constraints upon, aneutral notion of disability. (shrink)