On 19 April, a group of experts gathered to discuss key issues in the ongoing debate about stem cell research and related issues pertinent to xenotransplantation. Participants were Bill Anthony (moderator) of Orrick, Herrington and Sutcliffe; David J. Earp of Geron Corporation; Liz Howard of Orrick, Herrington and Sutcliffe; Wayne Koberstein of Pharmaceutical Executive; Thomas G. Sanders of MitoKor; and Margaret R. McLean of the Markkula Center for Applied Ethics, Santa Clara University.