Complexity and Ethics of Gene Editing

What does gene editing mean for society? How complex is the procedure? What is the likelihood that mistakes will be made in the process? What happens to discarded embryos?

Human Gene Manipulation: Screening

Suppose you are a prospective parent. Can you and do you want to affect the properties of your baby. Would you like it to be disease free? How about athletic or intelligent? What is the science? What are the ethics?