Mandatory masks will damage trade - that's the warning from retail bosses. Should face coverings in shops be compulsory? Stephen spoke to Glyn Roberts from Retail NI, commentator Patricia Mac Bride, and Raymodn Neal from union USDAW. Also on the podcast, DUP MP Sammy Wilson hits out at the BBC over licence fee and accuses the broadcaster of political bias. Stephen got reaction from former MP Lembit Opik and commentator Frank Shivers. Plus, a coronavirus vaccine developed by the Uni. of Oxford appears safe and triggers an immune response. How significant a breakthrough is it in the fight against covid19? Stephen spoke to Danny Altmann, Professor of Immunology at Imperial College London.