Most literature captures human experiments as either acceptable or unacceptable; good or bad; ethical or non-ethical. However, might there be finer degrees to distinguish medical experimentation from either being permissible or utterly unethical? Does informed consent convey different meanings depending on who invokes the term and the status of the human research subjects? When do researchers really know that consent is informed? Is a signature enough? This Essay unpacks important questions and concerns, including considering what human research subjects are entitled to know before, during, and after agreeing to participate in clinical trials. These matters gain further urgency in the wake of controversies involving the use of fetal tissue ...