MI5 alive to risk Middle East tensions pose to terror threat in UK boss says

Russia is intent on causing mayhem on UK streets, and Iranian-backed plots posing lethal threats to British people are ramping up at an unprecedented pace and scale, the boss of MI5 warned.. 

​Russia is intent on causing mayhem on UK streets, and Iranian-backed plots posing lethal threats to British people are ramping up at an unprecedented pace and scale, the boss of MI5 warned..