We’re still none the wiser about the origins of coronavirus, but has the lab leak theory just got more credible (00:55) Also on the podcast: are English tourists welcome in Scotland (15:25)? And is being rude the secret to success?With author Matt Ridley, virologist Dr Dennis Carroll, deputy political editor Katy Balls, hotelier Gordon Campbell Gray, journalists Harry Mount and Rebecca Reid.Presented by William Moore.Produced by Cindy Yu, Max Jeffery and Sam Russell.