Felix Frankfurter,
Communist Party of the United States v…
“ The existence of direction, domination, or control in each instance is an issue of particular fact. The question whether in the case of a given organization such a compulsion or impulsion arises from the complex of ties which link it to a foreign government or organization that it will, because of those ties alone, adhere in its conduct to decisions made for it abroad, is one which Congress has committed, in the first instance, to an expert trier of fact. ”
