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844Rh give clear and convincing evidence of an intent to withhold it"); cf. Moog Industries, Inc. v. FTC, 355 U. S. 411, 414 (1958) (Federal Trade Commission decisions to prosecute are reviewable and can be overturned when "patent abuse of discretion" demonstrated). Rather than confront Abbott Laboratories, perhaps the seminal case on judicial review under the APA, the Court chooses simply to ignore it." Instead, to support its new-found "presumption of unreviewability," the Court resorts to completely undefined and unsubstantiated references to "tradition," see, and to citation of four cases. See United States v. Batchelder, 442 U. S. 114 (1979); United States v. Nixon, 418 U. S. 683 (1974); Vaca v. Sipes, 386 U. S. 171 (1967); Confiscation Cases, 7 Wall. 454 (1869). Because the Court's "tradition" rationale, which flies in the face of Abbott Laboratories, stands as a flat, unsupported ipse dixit, these four cases form the only doctrinal foundation for the majority's presumption of unreviewability.