Page:Heckler v. Chaney.pdf/32

852Rh the problem of agency inaction and its concrete effects more regularly than do we, have responded with a variety of solutions to assure administrative fidelity to congressional objectives: a demand that an agency explain its refusal to act, a demand that explanations given be further elaborated, and injunctions that action "unlawfully withheld or unreasonably delayed," 5 U. S. C. § 706, be taken. See generally Stewart & Sunstein, 95 Harv. L. Rev., at 1279. Whatever the merits of any particular solution, one would have hoped the Court would have acted with greater respect for these efforts by responding with a scalpel rather than a blunderbuss.

To be sure, the Court no doubt takes solace in the view that it has created only a "presumption" of unreviewability, and that this "presumption may be rebutted where the substantive statute has provided guidelines for the agency to follow in exercising its enforcement powers." . But this statement implies far too narrow a reliance on positive law, either statutory or constitutional, see ibid., as the sole source of limitations on agency discretion not to enforce. In my view, enforcement discretion is also channelled by traditional background understandings against which the APA was enacted and which Congress hardly could be thought to have intended to displace in the APA. For example, a refusal to enforce that stems from a conflict of interest, that is the result of a bribe, vindictiveness or retaliation, or that traces to personal or other corrupt motives ought to be judicially remediable. Even in the absence