TikTok is a laugh – an endless stream of funny videos and a platform for all sorts of entertainment with more than half a billion downloads last year. But the West isn’t seeing the funny side of this Chinese-owned app anymore, with growing concern about privacy issues, the security of users’ data and the sheer reach of the app into people’s lives. Workplace bans are coming thick and fast – in the EU parliament and the BBC for example, while governments in Denmark, Belgium and Canada have all forbidden staff to have TikTok on their work phones. In the US,…