Expropriation — Debts — Situs of debt — Certificate of deposit payable at any branch of bank worldwide — Deposit originally made with branch in Cuba by Cuban national — Whether debt sited in Cuba — Whether debt capable of having more than one situs

Relationship of international law and municipal law — Act of State and non-justiciability — United States act of State doctrine — Principle that United States courts will not question validity of expropriation by foreign State of property within that State’s territory — Situs of property expropriated — Debts — Hickenlooper Amendment — The law of the United States and of New York