The head of MI5 says Britain is facing a staggering rise in attempts at assassination, sabotage and other crimes backed by ...

Pressed by the MEN, Ken McCallum said he was 'very sorry' his officers did not seize the 'slim chance' they had to stop ...

An assertion by the head of the UK's MI5 security service that Russia's GRU military intelligence agency is bent on causing ...

ISIS and al Qaeda present a “resurgent” threat to the United Kingdom, the head of the country’s domestic security service ...

James Callis told UPI the Claude Whelan, the MI-5 director he portrays on "Slow Horses," means well, but is in over his head ...

Russia's intelligence agency has been on a mission to generate "sustained mayhem on British and European streets", the head ...

In a speech delivered from the Counter Terrorism Operations Centre (CTOC) on Tuesday in London, MI5 Director General Ken ...

Ken McCallum said the number of state-threat investigations undertaken by MI5 has risen by 48 percent in the past year.

The head of MI5 says Britain is facing a staggering rise in attempts at assassination, sabotage and other crimes backed by Russia and Iran LONDON -- Britain is facing a “staggering rise” in ...

Russia is trying to create "mayhem" on the UK's streets, the head of the MI5 has warned. In a wide-ranging speech, the organisation's director general Ken McCallum said Britain faces an increased ...