Attaches two "Lexicon" documents and a document titled "CRCL Principles for Intelligence Analysis 2016." The sender explains that the DHS HVE Lexicon document "contains all the definitions we use‚ to keep the language used by DHS consistent and precise." They go on to explain that, while a new Lexicon document is in development, this document is still what DHS uses, unless the term is found in the Interim Guidance Memo for March 2021, which supersedes the Lexicon document. Sender name redacted pursuant to Exemption (b)(6).