A good primer regarding the ethics of cloning and the use of ESC (embryo stem cells) as opposed to ASCs (adult stem cells), why cloning would be done in the first place, and where we're headed if it becomes legal everywhere ("mixing in a hawk's DNA to improve eyesight" being the least of our worries, egg-harvesting farms in poor countries one of the major concerns).
I appreciated the first 90 pages or so of the book, the writing is very engaging and the science explained clearly and thoughtfully. Afterwards it gets a bit tedious. So. Smith does a good job of exposing how biotech is manipulating terminology to make headway in legalizing cloning. This takes a great deal of thought, as it means defining life itself (in this particular case, where life begins for an embryo), and what can be expected from most biologists, who are just as fanatical as any religious fundamentalist about experimenting on what they see as progress. Smith also looks at the psychology of would-be parents of cloned children, concluding that "it's striking how uniformly their desire to clone is based on a "me" mindset" - no surprises there.
Smith has a conservative bent, and is obviously pro-life. However his arguments about banning the practice of cloning for child production will weigh heavily on anyone's mind.