When we visited Nauru as paediatric specialists three years ago, we were asked to see 30 of the 100 children being detained on the island. Among them was a six-year-old girl who had tried to kill herself and a two-year-old boy with such severe behaviour problems a doctor had prescribed anti-psychotic medicines. Their parents were in despair. They had fled persecution, trying to save their children from harm, but had ended up imprisoned on a remote island, without hope. We left with the view that these were the most traumatised children we had ever consulted on, far worse than children we had seen in Australia, Africa, Asia or Europe.