Facebook decided not to ban a famous photograph of the Vietnam War. It banned a photo of a naked, 9-year-old girl running away from a napalm attack. It won a top photography prize. Facebook got a lot of complaints. Norway's president Erna Solberg said the photo was an important part of history.

Ms Solberg explained: "They must see the difference between…child pornography and editing out history." She added: "I want my children and other children to grow…where history is taught as it was." Facebook said the photo is pornography in some countries. It said it understood the global importance of the photo.