Agencies including the FBI have previously created a range of cryptic puzzles
Admission came as the Home Secretary announced the Investigatory Power Act
Were MI5 officers in the room as US interrogators beat him up in Afghanistan, as Aamer alleges?
Andrew Parker's speech comes shortly before a new surveillance bill is to be published by parliament
Andrew Parker argued that new technology meant current legal powers were making it more difficult for police and spies to monitor extremists
Organisations to receive recognition from the charity include an NHS Trust, and a housing company
Change to UK motoring laws will also give speeding exemptions to transplant organ couriers and bomb disposal units
Files released under the 30-year rule reveal how the Thatcher government tried to stifle the National Union of Mineworkers’s funding from the Soviets
First night: Aldwych theatre, London
The secret services were aware of both Michael Adebolajo and Michael Adebowale
Alliances are shifting after West warns war-torn country poses greatest terror threat
Stephen Ward, who shared a flat with Christine Keeler, said he was a ‘connoisseur of love-making’
Well-known guest editors taking over BBC's Today show is a Christmas tradition – an escape from the 24-hour news cycle. But the scheme may have had its time, says Ian Burrell
They’ll just be promoting their pet schemes and ideas - not editing in any real sense
After months of concern over interference in the media by the intelligence services, the BBC has invited the former head of the security service MI5 to be guest editor of the Today programme.
Hans-Christian Stroebele said he had written to the heads of MI5, MI6 and GCHQ