In this photograph taken on May 11, 2017, former Pakistani child labourers make their way home past labourers after attending their classes at a school on the outskirts of Lahore, following a scheme that puts cash in the hands of the parents of under bonded labourers which has removed almost 90,000 children from dangerous brick kilns over a year-and-a-half. A government cash-incentive scheme has helped place almost 90,000 underage Pakistani brick kiln workers into school, officials said May 12, an initiative aimed at easing the long-standing problem of indentured labour. Campaigners estimate there are more than two million Pakistanis trapped in a vicious cycle of debt bondage to factory owners that continues for generations, a practice often referred to as modern slavery. / AFP PHOTO / ARIF ALI (Photo credit should read ARIF ALI/AFP via Getty Images)
