Britain's Secret Code-Breakers

In February 1943, as German and Italian troops withdrew from Libya, thousands of miles away, Britain's secret army of British code-breakers were listening in. Witness talks to Rozanne Colchester, one of the thousands of young men and women who worked at Bletchley Park in England, breaking their enemies' secret codes, like Enigma, and deciphering their top-secret military communiques. (Photo:Code-breakers in Hut Six at Bletchley Park, deciphering German Air-force codes. Crown copyright, reproduced by kind permission of Director, GCHQ)