Nearly 50 years after his death it is King's words and deeds that live on in the American memory -- not that of the racists who hated him or the Black Power advocates who scorned him.
Earlier this month a former Red Guard member apologized for her behavior during the Cultural Revolution of the 1960s, but one journalist thinks more of a reckoning is needed.
Clips from Bill's conversations with scientists Jane Goodall, Sir John Houghton and the late Isaac Asimov, who shared their views on the intersection between religion and science.
Robert Reich writes that desperation for jobs is part of the reason many workers oppose better safety and health regulations for fear they might drive companies out of town.
In-depth interviews with a range of guests including theoretical physicists and Vatican Observatory astronomers from the award-winning public radio program On Being.