“Cases in which a State incurs international responsibility for the act of a subject of international law other than a State (e.g. an international organization or an insurrectional movement), although intellectually conceivable, are not covered, because there are no known cases in which this has actually happened and such cases are unlikely to occur in the future.” (ibid. (Part One), document A/CN.4/318 and Add.1-4, para.
(Ibid., première partie, document A/CN.4/318 et Add.