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Rh United States satisfies §1608(a)(3).

Because embassies are “responsible for state-to-state relationships,” Malone, The Modern Diplomatic Mission, in The Oxford Handbook of Modern Diplomacy 124 (A. Cooper, J. Heine, & R. Thakur eds. 2013), an important function of an embassy or other “diplomatic mission” is to “act as a permanent channel of communication between the sending state and the receiving state.” G. Berridge & A. James, A Dictionary of Diplomacy 73 (2d ed. 2003). Embassies fulfill this function in numerous ways, including by using secure faxes, e-mails, or the “diplomatic bag” to transmit documents to the states they represent. A. Aust, Handbook of International Law 122 (2d ed. 2010); see ibid. (the diplomatic bag is a mailbag or freight container containing diplomatic documents or articles intended for official use). Thus, as one amicus brief aptly puts it, embassies “have direct lines of communications with the home country, and a pipeline to route communications to the proper offices and officials.” Brief for Former U. S. Counterterrorism Officials et al. as Amici Curiae 29.

Numerous provisions of the Vienna Convention on Diplomatic Relations (VCDR) confirm this reality, Apr. 18, 1961, 23 U. S. T. 3227, T. I. A. S. No. 7502. Under the VCDR, an embassy “may employ all appropriate means” of communicating with the state whose interests it represents, Art. 27(1), including “modern means of communication such as (mobile) telecommunication, fax, and email,” Wouters, Duquet, & Meuwissen, The Vienna Conventions on Diplomatic and Consular Relations, in The Oxford Handbook of Modern Diplomacy, supra, at 523. The VCDR provides substantial protections for the “official correspondence of the mission” and the diplomatic bag, which may include “diplomatic documents or articles intended for official use.” Arts. 27(1)–(5); cf. Vienna Convention on Consular Relations, Arts. 3, 5(j), 35, Apr. 24, 1963, 21 U. S. T. 77, T. I. A. S. No. 6820 (recognizing that