most will need proof of vaccination — but bans on non—us citizens arriving from many countries will end. facebook says its spending billions on safety — as a whistleblower tells british mps that the social media platform is making hatred worse. and — it's a royal affair — as japan gets ready for their princess to marry a commoner — before the couple leave for a new life in the united states. hello and welcome to the programme. let's start in afghanistan — and a distressing snapshot — of the unravelling humanitarian situation. the un has warned of a �*countdown to catastrophe,�* with millions facing starvation. already, hospitals are seeing horrific scenes of malnutrition.