1. In what ways can operator liability attach to a parent corporation? How did the Sixth Circuit Court disagree with the district courts analysis?

2. Is direct liability for a parent companys operation of the facility distinct from derivative liability for the subsidiarys operation of the facility? Should the focus be on parent and subsidiary or on parent and facility?

3. What norms of corporate behavior does the court look to in determining whether an officer or a director is involved in the operation of a facility?