Document 23: Department of Justice, In Re [deleted] on Appeal from the United States Foreign Intelligence Surveillance Court, Brief for the United States, No. 02-001, August 21, 2002. (Classification Not Available).
Document 25:
United States Foreign Intelligence Surveillance Court of Review, In re: Sealed Case No. 02-001, Consolidated with 02-002, November 18, 2002. (Classification Not Available).
Document 30:
Elizabeth B. Bazan, Congressional Research Service, The Foreign Intelligence Surveillance Act: An Overview of the Statutory Framework and Recent Judicial Decisions, April 21, 2005. (Unclassified).