Enough is enough. I think it falls into State Right to forbid Norfolk and Southern Rail movements within the State until N$S makes it safe. They have NO RIGHT to destroy value and walk away simply because they decide to move unsafe cargo over unsafe rails.
And no the answer is not to sue them into oblivion. It is simple. Deny them the routes. They have no right to the route. They have no right to ride the rails through any area where the rails are not safe.
Ban them. And make it stick.