 Ohio, Indiana, and West Virginia challenged the federal rule, calling it too costly and ineffective. The 5-4 decision to grant a stay doesn't totally nix the plan, but it does place it on hold. Evacuations are underway in a Chicago suburb after a train derailment. Multiple cars from the Canadian National Railway Company train derailed this morning with at least one train leaking an unidentified substance. A spokesperson said the white powdery substance was tested and is not hazardous. Residents in the area are evacuating as a precaution.