The following excerpt is from Klarfeld v. U.S., 944 F.2d 583 (9th Cir. 1990):
A classification scheme is permissible under the equal protection obligation imposed by the fifth amendment's due process clause, so long as it does not employ a classification that is inherently invidious or that impinges on fundamental rights, if it "classif[ies] the persons it affects in a manner rationally related to legitimate governmental objectives." Schweiker v. Wilson, 450 U.S. 221, 230, 101 S.Ct. 1074, 1080, 67 L.Ed.2d 186 (1981).
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