Abstract
This chapter reviews Star Trek's course in wrestling with issues of political and social secularization. Any debate about secularization is a set of arguments about the best relationship between religious beliefs and institutions on the one hand, and political, social, and economic structures on the other. The chapter provides several moral arguments as to why liberal democracies like the United States should pursue greater secularism in the future. A popular but particularly unhelpful way of framing this debate is in terms of religion versus reason. Deep Space Nine is the Trek series in which one society's religious interests and the Federation's secular commitments create the most friction. Some characteristics of religious thinking are quite antagonistic to political principles of a liberal democracy. Long since grown out of the antagonistic Roddenberry attitude toward religion in the public sphere, secularism in the Star Trek series reminds the human adventure is just beginning.