In 2013, San Francisco transformed itself into Gotham City to raise the spirits of Miles Scott, a 5-year-old Batman fan with leukemia. Coverage of the Make-a-Wish Foundation event went viral, garnering attention around the globe. But according to ethicist Peter Singer, author of the new book "The Most Good You Can Do," the money spent on Batkid might have been better used to save the lives of children in developing countries. Singer joins us to discuss the burgeoning movement known as "effective altruism" and what it means to live an ethical life.
Poor Kids vs. Batkid: Ethicist Peter Singer on How to Choose a Charitable Cause
Peter Singer, professor of bioethics at Princeton University and author of the new book "The Most Good You Can Do: How Effective Altruism is Changing Ideas About Living Ethically"