Fulcrum and the Sanitized Voids of the SS-NX-5
For decades, the UK Ministry of Defence held the technical keys to the Soviet MiG-29 and the SS-NX-5 missile—until the most critical assessments simply vanished from the record.
By Eleanor Voss ·
UK National Archives
US/UK Liaison and the Secret Export of German Nuclear Minds
For decades, the movement of nuclear technicians and the blueprints for atomic energy were buried in "general correspondence"—a bland label for a high-stakes intelligence exchange.
By Eleanor Voss ·
Operation DRAGON RETURN and the British Technicians Sent into the USSR
Personnel were moved across the Iron Curtain as assets, their movements tracked in registered files that omit the intelligence they actually gathered or the cost of their return.
By Eleanor Voss ·
The Nuclear Silence of DEFE 44/325
A technical intelligence report was scrubbed from the UK National Archives, leaving a bureaucratic void where the secret of a foreign nuclear capability once sat.
By Roy Castellano ·
Z S Takibayev and the 16-Day Atomic Watch
A scientist's two-week visit to Britain in 1960 was tracked by the Ministry of Defence's atomic intelligence divisions, and the names of those he met remain off the record.
By Eleanor Voss ·
Ursula Beurton and the Wireless Link to the Manhattan Project
Seven aliases masked a Soviet intelligence hub in the heart of the UK, providing the vital communication channel for the atom spy Klaus Fuchs while MI5 looked the other way.
By Constance Bell ·
Arthur Alexandrovitch Adams Compromised US Atomic Secrets Before 1945 Escape
A Soviet operative infiltrated the Manhattan Project and escaped arrest in 1945, leaving the American nuclear monopoly shattered and the Cold War balance shifted.
By Roy Castellano ·
Ministry of Defence Monitored Secret Soviet Atomic Weapon Use
Clandestine Soviet nuclear activity was tracked by a scientific intelligence network that operated in the shadow of the Ministry of Defence for decades.
By Eleanor Voss ·
Ministry of Defence Hid Costs of Tracking Soviet Atomic Tests
The cost of tracking clandestine Soviet nuclear tests remained buried in MoD financial records long after the Atomic Energy Intelligence Unit was superseded.
By Eleanor Voss ·
Ernest Czuczka's Fur Trading Cover Masked Soviet Spying in London
An Austrian refugee infiltrated London and later the United States, his identity as a Soviet agent flagged by a defector while he operated a press agency under a false name.
By Harlan Pryce ·
Klaus Fuchs Betrayed the Manhattan Project for Soviet Handlers
A physicist's choice to feed atomic secrets to Soviet agents remained hidden for years, with a conviction that ultimately rested on a confession because investigators found no other evidence.
By Harlan Pryce ·
Klaus Fuchs Lost British Nationality After Betraying Atom Bomb Project
He volunteered his services to Moscow in 1942 and passed damaging data for seven years, yet the investigation that led to his arrest produced no evidence of his espionage.
By Roy Castellano ·
Harry Houghton Betrayed Naval Intelligence From 1951 to 1961
British naval security was compromised for a decade by a clerk and his accomplice, a breach tracked in the Security Service's personal files on Soviet intelligence agents.
By Constance Bell ·
Klaus Fuchs Served 14 Years for Giving Atom Bomb Secrets to Moscow
A physicist’s secret life as a Soviet asset remained hidden until a sensitive American source broke the case, though the British investigation found no physical proof of his spying.
By Eleanor Voss ·
Klaus Fuchs Handed the Atom Bomb to Moscow and Lost His Citizenship
A physicist volunteered for the KGB and damaged the West's nuclear monopoly, yet the Security Service caught him without a single piece of physical evidence.
By Harlan Pryce ·
Klaus Fuchs Betrayed the Atom Bomb Project and Left No Physical Evidence
A physicist who volunteered for the Soviets lived a double life for eight years, only to be convicted on a confession because investigators found nothing else.
By Eleanor Voss ·