The EPA has reinterpreted it regulations on coal-fired power plants. It has decided that there will be a theoretical harm to a theoretical child of a pregnant mom who has consumed 139 pounds of fish that was self-caught from water at the 95th percentile level of methyl mercury contamination as a result of coal power generation, and that theoretical child would lose 0.2 IQ points. Now it does not matter that the EPA has not been able to identify a single real person in the US who would actually meet those parameters.
The cost of this MACT law will be $11 billion a year and a loss of 35 gigawatts of generating capacity as coal-fired plants close. And electricity rates skyrocket (as promised) and the power supply grid becomes less reliable. For a fraction of this cost, we could afford to have catered chef-prepared meals done for every pregnant lady in the US that is not already on food stamps.
The Senate rejected an amendment that would have reined in this activity. 5 Republicans voted against it along with 6 of the 12 democrats that had sponsered it in the first place. A LOT of behind the scenes pressure going on.