POLITICS MI5 boss warns of ‘dramatic jump in scale and pace of British terror threat’ By admin - October 17, 2017 0 455 Share on Facebook Tweet on Twitter BRITAIN is facing an unprecedented threat of terror today, the head of MI5 has declared. Andrew Parker warned that activity from sick terrorists is harder than ever to detect, and there has been a "dramatic upshift" in the type of threats seen. < !-- END THEIA POST SLIDER --> 1 of 5