Main content
The code-breaking sisters who kept their story secret, even from each other
Pat and Jean did vital code-breaking work in World War Two. They had to sign the Official Secrets Act and it was only years later they revealed to each other what work they had been doing.
Duration:
This clip is from
More clips from Breakfast
-
Easter eggs: paying more for less?
Duration: 02:21
-
Consumers warned about Pay by Bank protections
Duration: 02:23
-
How to avoid the 'subscription trap'
Duration: 07:47
-
30 years of the airline that revolutionised low-cost flights
Duration: 02:44