Russian sleeper cells explained as suspected Russian spies arrested in UK

VLADIMIR Putin’s spies have “infiltrated“ every part of British society, a former KGB agent has warned. Ex-double agent Boris Karpichkov, 63, said the extent of Russia’s spy activity in the UK is now “immense“ - and claims UK security agencies are blind to the threat. Read more: I’m an ex-KGB agent – I know Putin’s spies have infiltrated EVERY part of British society…UK spooks are blind to threat The Sun newspaper brings you the latest breaking news videos and explainers from the UK and around the world Become a Sun Subscriber and hit the bell to be the first to know Read The Sun: Like The Sun on Facebook: Follow The Sun on Twitter: Subscribe to The Sun on Snapchat: