National Public Radio: The Environmental Protection Agency is proposing to let oil companies continue to dump polluted wastewater on the Wind River Reservation in Wyoming. This includes chemicals that companies add to the wells during hydraulic fracturing, an engineering practice that makes wells produce more oil. An NPR investigation last year discovered that the EPA was allowing oil companies to send so much of this contaminated water onto dry land that it was creating raging streams. At the time, there was a controversy...