Britain is facing a resurgent danger of a terrorist attack from Islamic State or Al Qaeda alongside a rise in child radicalisation and growing state threats from Russia and Iran, the head of MI5 said on Tuesday as he warned that his spies had “one of hell of a job” to keep the public safe.
Ken McCallum, MI5’s director general, said a third of the most threatening plots investigated by his spies involved links to the IS and Al Qaeda or others based overseas.
