"U.S. EPA knows which chemical facilities aren't following federal safety protocols, but it can't tell the public where they are.

So-called outlier plants handle hazardous chemicals at levels high enough to trigger federal reporting requirements -- but they're not complying.

EPA identified between 13 and 15 potential violators in the wake of an explosion at an outlier plant in West, Texas, three years ago this month that killed 15 people. At least two outliers remain out of compliance.

But their identities remain a secret thanks to post-Sept. 11 regulations administered by a different agency, the Department of Homeland Security."

Sam Pearson reports for Greenwire April 11, 2016. [2]