‘Increasingly aggressive’ Russia a growing threat to UK, says MI5 head

Exclusive: In first newspaper interview given by a serving spy chief, Andrew Parker talks of terror, espionage and balance between secrecy and privacy

• Ewen MacAskill and Paul Johnson

Russia poses an increasing threat to the stability of the UK and is using all the sophisticated tools at its disposal to achieve its aims, the director general of MI5 has told the Guardian.

In the first newspaper interview given by an…

• ‘Increasingly aggressive’ Russia a…