Ballet has played an important role in Western art for more than 400 years, but the historian and dance critic Jennifer Homans cautions we shouldn't take it for granted. Homans is the author of "Apollo's Angels," which looks at the rich and complex history of ballet. She joins us to talk about the art form and the ways it has renewed itself in the face of political and social upheavals. We'll also talk about the "uncertain moment" Homans says ballet is experiencing now. (Rebroadcast)
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