Secret Alan Turing papers released by GCHQ

Mathematical papers written by WWII code breaker and pioneer computer scientist Alan Turing have been released by government intelligence agency GCHQ after being kept secret 70 years. 

The two handwritten papers, classified as ‘sensitive’ until a recent reassessment and kept confidential for over half a century, are said by GCHQ to have been authored by Turing when he worked at Bletchley Park, the code-breaking centre of British intelligence during the war.