It is normally a standard part of a royal tour, the moment when the royals venture to the back of the plane, where the media sit, to say hello and have a chat. But the tour of the South Pacific by the Duke and Duchess of Sussex in 2018 was different. It had started with a bang, with the announcement that Meghan was pregnant. And the couple had proved extremely popular in Australia, New Zealand, Fiji and Tonga.
