7. Critical mass

7. Critical mass

Update: 2025-12-09
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The interrogation of a spymaster. Ursula is questioned as Klaus Fuchs returns to England. Secrets threaten to be spilled and loyalties are tested. The war has ended, and the physicist could have a promising future. But will his past catch up with him? Could British intelligence services be on to him? #thebomb

https://www.bbc.co.uk/programmes/p0cq47nn
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7. Critical mass

7. Critical mass