Barclays and four of its former executives have been charged with fraud, a throwback to the 2008 financial crisis when the bank raised billions from Qatari investors. But what happened nine years ago? And why have the company's actions been investigated? Also, how buyers are striking a hard deal at the Paris Air Show. And why meddling by Saudi Arabia’s Muhammad bin Salman in Aramco might scupper the world’s biggest IPO. Hosted by Simon Long.