Abstract
This symposium considers various aspects of “The New Demarcation Problem” (i.e., distinguishing between legitimate and illegitimate uses of values in science). Ty Branch and Heather Douglas argue that a successful solution must also renegotiate the scientific social contract. Bennett Holman explores what can (and cannot) be taken from the Popperian demarcation problem into debates about values. Janet Kourany makes the case that anti-racist values point the way to a more general standard to legitimate values in science. Philip Kitcher argues that to judge scientific decisions, we must understand how different motivations might contribute to or detract from human progress.