 Notwithstanding what Judge Kagan said, I'm going to read you the initial paragraph of the Administrative Procedure Act, by the way, which was never cited in Chevron, to give you a sense what's about. And it just says it. To the extent necessary to decision and when presented, the reviewing court shall decide all relevant questions of law, interpret constitutional and statutory provisions, and determine the meaning and the applicability of the terms of an agency action.