An official inquiry found that MI5, Britain's domestic intelligence agency, didn't act quickly enough on information that provided an opportunity to prevent the attack.
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MI5
Ariana GrandeLONDON — Security services could have prevented a suicide bomber from killing 22 people in a terror attack outside an Ariana..
An inquiry into the 2017 bombing at an Ariana Grande concert has found that intelligence should have been acted upon about suicide..
A final official inquiry has found that better intelligence sharing between MI5 and other agencies may have prevented the deadly..