be, there are undoubtedly constitutional limits upon its exercise." Id., at 365.
See also Wayte v. United States, ante, at 608. Thus, even in the area of criminal prosecutions, prosecutorial discretion is not subject to a "presumption of unreviewability." See generally Vorenberg, Decent Restraint of Prosecutorial Power, 94 Harv. L. Rev. 1521, 1537–1543 (1981). If a plaintiff makes a sufficient threshold showing that a prosecutor's discretion has been exercised for impermissible reasons, judicial review is available.
Second, arguments about prosecutorial discretion do not necessarily translate into the context of agency refusals to act. "In appropriate circumstances the Court has made clear that traditions of prosecutorial discretion do not immunize from judicial scrutiny cases in which the enforcement decisions of an administrator were motivated by improper factors or were otherwise contrary to law." Marshall v. Jerrico, Inc., 446 U. S. 238, 249 (1980) (citations omitted). Criminal prosecutorial decisions vindicate only intangible interests, common to society as a whole, in the enforcement of the criminal law. The conduct at issue has already occurred; all that remains is society's general interest in assuring that the guilty are punished. See Linda R. S. v. Richard D., 410 U. S. 614, 619 (1973) ("[A] private citizen lacks a judicially cognizable interest in the prosecution or nonprosecution of another"). In contrast, requests for administrative enforcement typically seek to prevent concrete and future injuries that Congress has made cognizable—injuries that result, for example, from misbranded drugs, such as alleged in this case, or unsafe nuclear powerplants, see, e. g., Florida Power & Light Co. v. Lorion, ante, p. 729—or to obtain palpable benefits that Congress has intended to bestow—such as labor union elections free of corruption, see Dunlop v. Bachowski, 421 U. S. 560 (1975). Entitlements to receive these benefits or to be free of these injuries often run to specific classes of individuals
