Abstract
As the possibility of cloning humans emerges on the horizon people are worrying about the morality of using the new technology. They are anxious about the ethical borders that might be crossed when duplicate humans can be produced by separating the cells of a newly fertilized human egg or, in the more distant future, by creating a zygote from an existing person's genetic material. They are apprehensive about eugenics, concerned about creating humans as sources of spare parts for others, uneasy about producing humans without intending to allow them to live and develop, and uncomfortable about using duplicate humans as business ventures