MI5 Chief Publicly Apologises Over Failure to Thwart Manchester Arena Atrocity

Director general Ken McCallum makes rare public statement after inquiry found a 'slim' chance the security forces could have stopped 2017 bombing

MI5 Director General Ken McCallum gives a speech at Thames House in central London on Nov. 16, 2022. PA

MI5 chief Ken McCallum has publicly apologised over the security service’s failure to thwart the Manchester Arena terror attack.

In a rare public statement, the director-general acknowledged MI5 did not seize the “slim” chance it had to thwart the 2017 bombing that claimed the lives of 22 people.