There is only one issue that ultimately matters: what is the nature of the unborn. If the unborn are not human persons, then the abortion-choice advocate does not need any argument to defend abortion. However, if the unborn are in fact human persons, then no argument can possibly morally justify abortion. This presentation marshals scientific evidence and moral reasoning to prove that the unborn are in fact full fledged members of the human family and therefore abortion is a terrible injustice.