Rediscovering Tebaldi

Sociologist Barry Glassner's new book Bodies explores the pressures Americans face to conform to particular standards of health and beauty. He says this cultural expectation -- which even extends to the workplace -- has led to a proliferation of diet and exercise programs, which most participants are doomed to fail.

Part I of Terry Gross's interview with filmmaker Penelope Spheeris. Spheeris talks about her new movie, The Decline of Western Civilization Part II: the Metal Years, a documentary about the heavy metal scene. She thinks stereotypes of the inarticulate and unskilled metal musicians are unfair -- though it's often true that they embrace a drug-fueled, self-destructive lifestyle.

Language commentator Geoff Nunberg wonders about the demand for authentic regional and national accents in motion pictures -- even when its not essential to the plot.