At the weekend Facebook's Mark Zuckerberg surprised the world by calling for more regulation, suggesting that the US should adopt Europe's data protection rules.

But now the UK's information commissioner has asked him to take action to show he means what he says.

Elizabeth Denham has told Facebook to drop its appeal against the £500,000 ($655,000) fine she imposed following the Cambridge Analytica scandal.

A new "Why am I seeing this post?" button will indicate what activity influenced Facebook's algorithms.

The Chinese company Huawei has been strongly criticised in a report by the body overseeing the security of its products in UK telecoms. The report, issued by the National Cyber Security Centre, which is part of GCHQ, says it can provide "only limited assurance that the long-term security risks can be managed in the Huawei equipment currently deployed in the UK".