The Shadow Dossier — The Physicist Who Gave Away the Bomb

The Shadow Dossier · Oct 4, 2026 · 5m · transcript

Klaus Fuchs left Germany in 1933 as a young physicist and a committed communist, one step ahead of the Nazi regime that had already marked him for arrest. Britain took him in. By the outbreak of the Second World War, he had built a career as a gifted theoretical physicist and had even been naturalized as a British subject, despite a brief internment as an enemy alien in the war's early, suspicious months.