The Farewell Dossier: Line X and the Tech-Transfer Trap
In 1981, a KGB colonel named Vladimir Vetrov walked French intelligence a mountain of paper. Roughly four thousand documents mapped how Soviet "Line X" / T Directorate officers stole Western scientific and technical secrets. The French DST ran him as "Farewell." François Mitterrand briefed Ronald Reagan. What followed was a counterintelligence campaign that included feeding the Soviets altered technology.
Weiss and the Canonical Public Narrative
Gus W. Weiss's CIA Studies in Intelligence essay "The Farewell Dossier" is still the public spine: https://www.cia.gov/resources/csi/studies-in-intelligence/1996-2/the-farewell-dossier/. Weiss later restated the arc in a 2004 New York Times opinion piece. The dossier is not folklore. Vetrov's product and the Franco-American channel are widely attested.
Line X as Bureaucracy, Not Magic
T Directorate / Line X worked like a shopping list with officers assigned to Western labs, firms, and conferences. Vetrov's value was mapping that bureaucracy so export-control and deception operations could target real collection nodes. Weiss keeps the tone bureaucratic and lethal—espionage as paperwork war.
What to Keep Off the Lead
Popular tellings sometimes climax with a Siberian pipeline explosion supposedly caused by planted faulty software. That legend is thinner than the Vetrov file. Treat it as contested add-on, not the proof of Farewell. The documented core is simpler: a mole, a briefing, a tech-trap program.
Export Control as Counterintelligence
After Vetrov, allied services did not only read Line X lists for trivia. They used them to poison the well—altered chips, skewed designs, delayed deliveries. That is counterintelligence craft. It is also why Farewell still shows up in Stuxnet-adjacent conversations about sabotaging an adversary's tech appetite.
Export Control as Counterintelligence
After Vetrov, allied services used Line X lists to poison the well—altered chips, skewed designs, delayed deliveries. That is counterintelligence craft, and why Farewell still shows up beside Stuxnet-adjacent conversations about sabotaging an adversary's tech appetite.
Settled Espionage Versus Industrial Folklore
Settled: Vetrov's Line X haul; the 1981 political channel; CIA/NATO counterintelligence use of the take. Contested: specific industrial-accident legends attached later. Lead with Weiss. Footnote the boom stories.
Archival reading tip for this file: prioritize the dated primary URLs in sources[] and the named commissions, courts, or excavators above secondary retellings that flatten the story into a slogan.