Despite its clean environment and health-concious residents, California’s Marin County has been called the breast-cancer capital of the world. But is the seemingly high incidence of the disease actually the result of high rates of screening, and tests that often yield false positives? And did some health officials allow the dubious reputation to continue, to keep research dollars flowing? Mickey Huff interviews Independent journalist Peter Byrne on the conclusions of his years-long investigation, and its implications about the workings of the health-care system.