The United States has weighed in on the side of the plaintiffs in the Kiobel case, arguing that it is for the federal courts exercising their "residual" common law powers to determine when corporate liability is appropriate…In other words, it is not necessary for international law to provide specifically for corporate liability. In any case, the brief notes, international law norms do not identify whether they apply to natural or to legal persons and corporations can be liable for those international law violations that apply to other non-state actors.