The hit video sharing platform quits operating in Hong Kong as the US considers a ban. Plus, is the threat from “deep fakes” overblown? And has the lockdown made video calling seem less awkward than it used to be? Presented by Rory Cellan-Jones, with BBC tech reporter James Clayton. Produced by Jat Gill. (Image: Close-up of the TikTok icon on a smartphone screen. Credit: Reuters/ Dado Ruvic).