China's yuan devaluation and Kim Kardashian medical advice

Beijing devalued the yuan, Ukrainian hackers accessed corporate press releases in the US and celebrity Kim Kardashian was criticised for promoting a drug she as paid to advertise. An eventful week for the BBC's Business News team analysed with Susannah Streeter in conversation with Izabella Kaminska, from the Financial Times newspaper in London and first Mathew Bishop from The Economist magazine in Geneva, who explains what was behind China's decision to devalue its currency.