China complains to the World Trade Organisation about Donald Trump's tariffs, but with no active judging panel, what can the WTO do?Roger Hearing discusses why the US Postal Service has U-turned after refusing to handle any parcels from China and Hong Kong, as well as the growing trade war between the World's two leading economies.Elsewhere, the issue of de-banking has been debated in the US Congress, so are financial institutions discriminating against certain groups or industries?And a man from Indonesia has been hired as Japan's first-ever foreign bus driver. Does this show the Japanese government's new determination to let in more overseas workers?The latest business and finance news from around the world, on the BBC.