This week we're taking a global look at TikTok, and some of the problems the video sharing platform has been facing. Also on Tech Life, you want to keep in touch with your child, but is there an alternative to giving them a smartphone ? We hear from video gamers in South Africa. And a female tech boss from Brazil shares advice on how others can follow her success.Presenter: Shiona McCallum Producer: Tom Quinn(Photo: The TikTok logo on a mobile phone screen. Credit: Chesnot/Getty Images)