The Prince and Princess of Wales have met budding environmental tech entrepreneurs in Boston - and a little boy dressed as a familiar Guardsman.William and Kate's three-day trip to the US to stage the Earthshot Prize has been overshadowed by the growing race row engulfing the future king's godmother, which has left the monarchy accused of being institutionally racist.

The Prince and Princess of Wales have met budding environmental tech entrepreneurs in Boston - and a little boy dressed as a familiar Guardsman.William and Kate's three-day trip to the US to stage the Earthshot Prize has been overshadowed by the growing race row engulfing the future king's godmother, which has left the monarchy accused of being institutionally racist.