It's nearly a year since a damning report into sexual exploitation revealed the abuse of 1400 children in Rotherham. Panorama reporter Alison Holt returns to the town to find many young women still trying to come to terms with what happened and asking if they will ever see their abusers in court. She discovers further evidence of the authorities failing to read the warning signals and investigates whether they're doing enough now to tackle the network of abusers who traffic children around the UK.