Foxconn's enormous Longhua plant is a major manufacturer of Apple products. It might be the best-known factory in the world; it might also might be among the most secretive and sealed-off. The vast majority of plants that produce the iPhone's component parts and carry out the device's final assembly are based here. The sprawling factory was once home to an estimated 450,000 workers. In 2010, Longhua assembly-line workers began killing themselves. Worker after worker threw themselves off the towering dorm buildings, sometimes in broad daylight, in tragic displays of desperation - and in protest at the work conditions inside. The corporate response spurred further unease: Foxconn CEO, Terry Gou, had large nets installed outside many of the buildings to catch falling bodies. Workers were made to sign pledges stating they would not attempt to kill themselves. It's not a good place for human beings," says [a former Foxconn worker], who goes by the name Xu. He'd worked in Longhua for about a year, until a couple of months ago, and he says the conditions inside are as bad as ever. The work is very high pressure and he and his colleagues regularly logged 12-hour shifts. Management is both aggressive and duplicitous, publicly scolding workers for being too slow and making them promises they don't keep, he says, [painting] a bleak picture of a high-pressure working environment where exploitation is routine and where depression and suicide have become normalised.