Harry and Meghan, the Duke and Duchess of Sussex, unveiled a memorial to children who died due to the effects of online harm.Prince Harry and Meghan Markle joined families in mourning in New York City on Wednesday evening as they unveiled a powerful memorial that calls for urgent reform of social media.The Duke and Duchess of Sussex attended a private vigil for a temporary installation called “The Lost Screen Memorial,” which features 50 smartphone lock screens. Each lock screen is in a lightbox displaying the image of a child whose life ended too soon as a result of social media. The parents of the children featured in the installation are all part of Harry and Meghan’sArchewell Foundation Parents’ Network and its No Child Lost to So