As inquiries into child abuse in Rotherham continue, File on 4 investigates claims of a hidden problem of sexual abuse within Britain's Asian communities. While the victims of recent grooming scandals have mostly been white girls, campaigners say Asian boys and girls have also been subjected to abuse over many years. Male and female survivors tell Manveen Rana there's a powerful culture of denial stopping many speaking out and getting justice. They say communities too often close ranks and ostracise or threaten those who complain, while leaving perpetrators to carry on. Reporter: Manveen Rana Producer: Sally Chesworth Assistant Producer: Yasminara Khan.