Radio 4 series Disaster Trolls investigates how victims of the Manchester Arena bombing and other UK terror attacks have been targeted by conspiracy theorists. Andrea Catherwood puts listeners' comments to BBC Disinformation and Social Media Correspondent Marianna Spring and recovering conspiracist Brent Lee.

Assistant Editor, BBC Monitoring, Olga Robinson joins Andrea to talk about her work helping News teams report on disinformation and conspiracy theories.

Also, the BBC has been receiving letters from listeners since it started broadcasting 100 years ago. Former BBC Producer Colin Shindler has collected classics for his book “I am Sure I Speak for Many Others" and he shares them with Andrea.

And we hear what listeners have had to say about BBC Radio coverage of the recent Just Stop Oil protests on the M25.

Presented by Andrea Catherwood