"Business is a terrible nursery for politicians, " says Michael Zuckerman, a professor of U.S. history at the University of Pennsylvania.

FORBES: When Entrepreneurs Try Politics

Arthur Caplan, Professor of Bioethics at University of Pennsylvania, and Robin Smith, CEO of NeoStem, U.S. based firm which helps people bank their own stem cells for possible future use.

FORBES: Vatican Stem Cell Conference Gets Thin Coverage

Dinges, a professor and sleep researcher in the department of psychiatry at the University of Pennsylvania, is trying to help companies and the U.S. government figure some of this out.

FORBES: Marketing