Two decades ago, Democrats and Republicans together sought to protect Americans from nearly 200 dangerous chemicals in the air they breathe. That goal remains unfulfilled. Today, hundreds of communities are still exposed to the pollutants, which can cause cancer, birth defects and other health issues. An ongoing investigation by the Center for Public Integrity, with NPR and the Investigative News Network uncovers the secret ‘watch list’ that underscores what government knows about the threat — and how little it has done to address it.
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