To be fair, it sounded like Foxconn was at capacity and the 18 hour shifts were more common, but I don't really know for sure. And make no mistake: a shift like that is brutal for anyone who has to stand the whole day.
But yeah, things like that happen in America, too. It usually leads to high burnout unless the workers are desperate. Things like 15% turnover per month are pretty average.
18 hour shifts are once in a while things that is asked of any employees. Ask any software developer in the game industry.