Purposefulness and self-sacrifice in human life "can never be reduced to a machine," according to this bioethicist.

Parents want to do whatever is possible to make their children healthy. But what about going beyond health to enhancement, making kids bigger or smarter or more talented? Science is opening that door in a big way, and many ethicists debate where the line between health and enhancement should be. Kim Lawton has our story.

Read R & E producer Susan Grandis Goldstein’s June 5, 2007 interview with Michael Sandel in Washington, D.C.