Read a transcript of this episode on FT.com

https://www.ft.com/content/402578f3-6ad6-45f8-8340-cb1e809fe95b

In this special interview, Sir Jeremy Fleming, head of the UK signals intelligence agency GCHQ, talks to FT editor Roula Khalaf and FT correspondent Helen Warrell about cyber threats from China and other state actors, the global competition for data and the "Snowden effect" on spy agencies.

Clips: IISS, NBC

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