light of the well-established common law (and international law) presumption that organizations are liable in tort for the acts of their agents. See Balt. & Potomac R.R. v. Fifth Baptist Church, 108 U.S. 317, 330 (1883); Br. for Petitioners at 12-17, Mohamad v. Palestinian Authority, No. 11-88 (Sup. Ct. Dec. 14, 2011) (“