Is Racism to Blame for Harry and Meghan's Retirement?

Prince Harry and Meghan Markle’s retirement as senior royals is still top news. But the couple has always been open about their struggle with being tabloid fodder. So, less than two years since their fairy-tale wedding, what's changed? Could the move provide a way forward for an increasingly irrelevant royal family? Journalist Afua Hirsch and royal historian Robert Lacey join Christiane to assess.