 who may be harmed by these overreaching regulations to go back to court and say, under this now obsolete doctrine, this regulation survived, but the court needs to take a new look at it. Third, and maybe most fundamentally, it'll give us in Congress the list of where we need to do a better job. For years, Congress leaned on this crutch to pass vague, ambiguous laws that avoided hard trade-offs that could involve political risk and just punted problems