National Public Radio: The Environmental Protection Agency says it has found no evidence that hydraulic fracturing - better known as fracking - has led to widespread pollution of drinking water. The oil industry and its backers welcome the long-awaited study, while environmental groups criticize it.
"We found the hydraulic fracturing activities in the United States are carried out in a way that has not led to widespread systemic impacts on drinking water resources," says Tom Burke, science adviser and deputy assistant...