Lawyer and bioethicist Sigrid Fry-Revere is the first Westerner to study and document the kidney donation system in Iran, the only country in the world to have solved its kidney shortage. The Kidney Sellers, her recently published book about the experience, has been met with both controversy and high acclaim. The former director of bioethics at the Cato Institute, Sigrid now directs two public, non-partisan charities that she founded—Stop Organ Trafficking Now and The Center for Ethical Solutions.