Expropriation — Of debt — Order to bank to pay to government sum equivalent to funds in private account — Whether amounting to expropriation of depositors’ assets — Whether payment of amount required discharges bank’s obligations to depositors — Situs of debt

Relationship of international law and municipal law — Act of State and non-justiciability — Principle that United States courts will not question validity of act of foreign State performed within jurisdiction of foreign State — Expropriation of debt — The law of the United States