Sovereign and organizational immunities — International organizations — Whether International Telecommunications Satellite Organization (“Intelsat”) immune from suit in United States courts under the International Organizations Immunities Act 1945 — Whether Presidential Executive Order designating Intelsat a public international organization entitled to enjoy the privileges, exemptions and immunities conferred by the Act was effective to extend immunities offered under the Act to Intelsat — Whether international organizations enjoy the same immunities as foreign States — The law of the United States