Mike Rogers, NSA and Robert Hannigan, GCHQ
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How the UK and US intelligence relationship grew

Seventy-five years ago, a group of Americans came to Britain on a top secret wartime mission.

Their destination was Bletchley park and their visit was the start of one of the most powerful intelligence relationships in history between GCHQ and the NSA.

The current intelligence chiefs of those agencies have returned to Bletchley to mark today's anniversary.

  • 08 Feb 2016
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