Danger in The Clean Room

For 8,000 male and female workers at five AT&T manufacturing plants around the U.S., a "clean room" is the low-humidity, highly sanitized workplace where noxious chemicals are used to make silicon wafers into microchips. Yet the clean rooms may be anything but. Last week AT&T disclosed that 15 pregnant employees who worked in those production areas had been warned about a sharply increased risk of miscarriage. When the company "strongly recommended" that they transfer to new jobs, at least until after they had given birth, all complied.

The AT&T move was the most recent response to evidence that the work involved...

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