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This is an administrative subpoena issued by the Federal government to gather information for national security purposes does not require prior approval from a judge. This subpoena seeks information "relevant" to authorized national security investigations. These subpoenas can only request non-content information (e.g., phone numbers dialed, but never the content of telephone calls). However, these subpoenas typically prohibit the recipient from disclosing that the FBI had requested the information. Passage of the US Patriot Act has greatly increased and expanded the use of these administrative subpoenas. This administrative subpoena is called a:A. National Security LetterB. National Security SubpoenaC. National Security RequestD. National Security Warrant

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