Overview: Endocrine disruptors in the environment

Scientists have learned that some chemicals may mimic or disrupt the hormones of people and wildlife, with potentially health-damaging results. They can be natural, like the estrogens produced by plants or cows, or synthetic, like birth control pills. They are known to be widespread in the nation’s waters, and to a lesser extent have turned up in groundwater. Sidebar to story on estrogenic wells in northeastern Wisconsin’s karst region.

Sidebar: California case prompts policy reforms

Revelations from jailhouse informant Leslie Vernon White prompted a mass review of cases spanning an entire decade in which jailhouse testimony had been used to secure a criminal conviction. And it led Los Angeles County to adopt what one expert calls some “of the best jailhouse snitch protections in the country.”