Political journalists must use anonymous sources with more care and not just parrot their briefings.
The Duke and Duchess of Sussex say they plan to sue a UK paper for publishing a private letter.
Why do TV news shows book interviews with people who lie or obfuscate? Dogged interviewer Mike Wallace was an example of how to do it right. But on live TV, it's almost impossible to do what he did.
Part memoir, part investigation, Leigh Sales's recent book Any Ordinary Day provides rare insight into the journalistic craft.