The great Twitter hack

Hackers take over accounts belonging to famous names including Joe Biden and Barack Obama after breaching Twitter’s security. Plus, the UK bans telecoms firms from buying new equipment from the Chinese giant Huawei. And we find out about robots with a sensitive touch. Presented by Rory Cellan-Jones, with BBC tech reporters Jane Wakefield and Joe Tidy. Produced by Jat Gill. (Image: A night shot of the Twitter HQ in San Francisco, Credit: JOSH EDELSON/ AFP/ Getty Images).