Bletchley Park is back and being used to train the new generation of code-breakers

Bletchley Park played a crucial role in defeating the Nazis. The centre, northwest of London, is where British codebreakers cracked the Nazis’ ‘Enigma’ code. The site has been abandoned for decades. But as Jeff Semple reports, it will now train a new generation of code makers and breakers to tackle a 21st-century threat.