ThinThread was an intelligence gathering project by the United States National Security Agency (NSA) conducted throughout the 1990s. The program involved wiretapping and sophisticated analysis of the resulting data. The program was discontinued three weeks before the September 11, 2001 attacks due to the changes in priorities and the consolidation of U.S. intelligence authority.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).