Inside Apple's Factories in China

"Nightline's" Bill Weir shows Foxconn employee Zhou Xiaoying photos of his family on his iPad, which once upon a time was assembled in a Foxconn factory floor. Watch a special edition of "Nightline," "iFactory: Inside Apple," TUESDAY, Feb. 21 at 11:35 p.m. ET/PT. (Almin Karamehmedovic/ABC News)