EPA tells nation's dirty power plants to clean up EPA forces dirtiest power plants to clean up toxic air pollution, but gives leeway on timing http://finance.yahoo.com/news/epa-tells-nations-dirty-power-183208380.html I would be happy to see TSTA get a little of this, lol: The rule ranks as one of the most expensive in the EPA's history, with an estimated $9.6 billion price tag.