"Just because they charge a fee and behave exclusively does not make them good, " warns bioethicist Art Caplan.

CNN: Is boutique medicine worth the price?

"If you go to the likes of Dr. Zavos, he will give you a dead baby, a defective baby or a deformed baby, " said Art Caplan, director of the Center for Bioethics at the University of Pennsylvania.

CNN: 'Raelian' biochemist insists she will clone human

University of Pennsylvania bioethicist and msnbc.com contributor Art Caplan said there are times when you can share too much scientific information with nuclear weapons, biological weapons and the like despite the desire for open research.

MSN: Scientist haunted by misuse of drugs he invented