Families affected by Manchester Arena attack say MI5 must be more open to scrutiny

In a letter to Keir Starmer, they say MI5 failed them and the Security Service must be included in a law to stop cover-ups

Families affected by the Manchester Arena bombing have said MI5 failed them and must be more open to scrutiny.

In a letter sent to the prime minister seen by the BBC, the families demanded the Security Service be fully included in a new law designed to stop cover-ups in public life.