National (U.S.)

Many people have told stories of getting severely sick near natural gas wells, especially ones using the controversial fracking technique. One of the biggest barriers to determining whether the gas production is causing illness is the gas industry's resistance to disclosing the toxic emissions and hazardous wastes they generate.

Abrahm Lustgarten and Nicholas Kusnetz originally reported the story for ProPublica September 16, 2011.

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