Therein lies the issue: Regulators have gone beyond their authority, not only into what is unreasonable, but what is not backed by statute. Chevron said the courts should give deference, unfortunately that deference has gone too far.

Taking your point however, I think congress will eventually be forced to act on this. We do need some deference to regulators, but that deference has been turned into legislative abdication. This decisions sets that right.

When congress is ready to write a law that gives greater deference to regulators they will. Until then, in my opinion, this was a proper decision of government restraint.