Interesting read, though completely non-committal. I already have a good idea of the basic disagreements about bioethical matters: I wanted some sense that the author had come to some conclusions and wanted to share her reasoning, and instead I found a lot of fence-sitting. There's plenty of science-fiction writing out there which discusses the same issues equally cogently but rather more entertainingly, and often more conclusively. (Even if that conclusion is an emotional one determined by the author's personal views rather than objective dissection of the problem!)