MI5 forced to ‘pare back’ counter-terrorism work due to rogue states, says chief

MI5 has had to “pare back” its counter-terrorism focus because of the growing threat from Russia and other hostile states, the security agency’s boss has said.

Ken McCallum, the director general of MI5, said the agency has to look at its “finite” resources and make “uncomfortable choices”.

“We now face much, much more aggression from nation states,” he said in an interview recording obtained by the Times. “In effect, we had…