This college student spent his summer undercover in a Chinese iPhone factory

Dejian Zeng may have built your phone. Or at least worked on it, anyway. 
The second-year masters of public administration student at NYU Wagner spent six weeks last year working in a Chinese factory manufacturing iPhones for Cupertino-based Apple. Six days a week he  screwed approximately 1,800 screws into 1,800 iPhones. Every day. Over and over again. 
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Why did he do this? It wasn't for the wages, which at approximately 3,