Klaus Fuchs: Spy leaked secrets 'like sieve'

A history project has uncovered evidence that a Soviet agent leaked atomic weapons research from a top secret munitions factory in Flintshire.

According to local historian Colin Barber, Klaus Fuchs was "leaking like a sieve" during his time at the Rhydymwyn Valley Works near Mold in the 1940s.

Mr Barber's believes his research into the base, which was originally set up to make chemical weapons, proves conclusively that Fuchs was supplying the Soviets with classified information.

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