International law in general — Relation to municipal law — Treaties — Interpretation in municipal courts — Warsaw Convention — The law of the United States

Treaties — In general — Form of international agreements — Montreal Agreement 1966 between airlines, members of LATA providing for the insertion of “special contract” in ariline tickets involving transport to or from the United States — Status — The law of the United States

Treaties — Interpretation — Principles and rules of interpretation — Reference to subsequent practice of parties — Warsaw Convention for the Unification of Certain Rules relating to International Transport by Air — Liability of carrier for “accident” — Whether extending to injuries suffered by passenger during hijacking of aircraft — Effect of the Montreal Agreement of 1966 — Status of the Montreal Agreement — The law of the United States