Blurs

We can’t responsibly frame this as a definitive “top list of worst mistakes” by a current intelligence service in a way that implies a complete, authoritative catalogue of wrongdoing.  Intelligence history is partial, contested, and heavily shaped by what has been declassified. What we can do is provide a fully sourced, publishable overview of the most widely documented and heavily criticised operations and failures involving the UK’s foreign intelligence service, the Secret Intelligence Service (MI6)—focusing only on cases that are supported by credible reporting, official inquiries, or declassified material. The Most Documented Failures and Controversies of MI6 The Secret Intelligence Service (MI6) is widely regarded as one of the world’s most capable intelligence agencies.  But like all major intelligence organisations, its history includes operational failures, ethical controversies, and politically sensitive interventions—especially during the Cold War and post-9/11 perio...