(Program not available for streaming.) What will it mean when most of us can afford to have the information in our DNA—all six billion chemical letters of it—read, stored and available for analysis?

Robert Krulwich admits that his eyes glaze over when talk turns to genetics. Mine do, too. But the ABC "Nightline" correspondent, who has the gee-whiz gene permanently implanted in his reportage, ...

Barbara Rae-Venter, a 76-year-old patent attorney living in Marina, California, thought she'd spend her retirement leisurely playing tennis, traveling, and indulging in her favorite pastime: ...

Twelve terrorists. One cop. The odds are against John McClane... That's just the way he likes it.