Number 10 deny a cover-up over Boris Johnson’s Covid Whatsapp messages. The Covid inquiry has demanded that the former PM hand over unredacted messages, diaries and notebooks by Thursday. Adam talks it all through with political correspondent Alex Forsyth and the Institute for Government’s Catherine Haddon, who also teaches ministers the do’s and don’ts of doing official business over WhatsApp.Plus the BBC’s former China correspondent John Sudworth and producer Simon Maybin talk about their new Radio 4 series which explores Covid’s origin.Today’s Newscast was presented by Adam Fleming. It was made by Ben Carter with Madeleine Drury, Rufus Gray and Jack Taylor. The senior news editor was Sam Bonham.