This article analyzes the ethical issues raised by embryonic stem cell rese
arch and recent recommendations by the National Bioethics Advisory Commissi
on (NBAC) regarding federal support for this research. The authors identify
the key ethical issue as the moral significance that should be granted to
early embryos and discuss arguments supporting the diverse answers to that
question and the implications each view has on the formulation of rules and
policies for stem cell research. The authors conclude that several of NBAC
's recommendations regarding the derivation of stem cells from embryos for
research are ethically justifiable and sound public policy.