Many policies in foreign affairs law increase national security at the expense of national wealth and vice versa. Courts have struggled to find a suitable framework for adjudicating cases arising out of these policy decisions. In the recent case United States v. Eurodif S.A., the Supreme Court seemingly abandoned previous assumptions about security-wealth cases, relying instead on the Chevron framework commonly used in administrative law. This Note outlines the potential shift to Chevron and its merits vis-à-vis older frameworks for security-wealth cases. It concludes that Eurodif may well represent a profound change in the Court’s treatment of international relations and predicts that continued application of the Chevron framework will improve foreign policymaking.