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KindHearts for Charitable Humanitarian Development v. Geithner and Al Haramain Islamic Foundation v. U.S. Department of the Treasury

In both of those cases the designated entity was incorporated in the US (KindHearts in Ohio, AHIF-Oregon in Oregon).

Those are names of cases, not laws.

Precedent fills out the finer points in how laws apply, or don't.

Perhaps you’re not familiar with the common law system and its reliance on case law?