Our research has uncovered a shocking underworld in which children and adults, many of them UK citizens, have been forced into lives of utter degradation.
Yet the authorities are either failing to understand the nature of this abuse or turning a blind eye to its existence. Our once great nation of abolitionists is a shameful shadow of its former self.
More top news
Liam Payne's outburst came after X Factor judge Louis Walsh criticised a reporter over a question about Payne's girlfriend Cheryl.
Spotting the warning signs for the many private causes of self-harm can be hard in the era of social media. Here's what you can do to help.
An "institutional conspiracy" on an "unprecedented scale" existed in Russia to help some 1000 of its athletes benefit from doping.