Most probably aren't. Even in China, where wages are much lower than in the US, Foxconn wants to automate half the jobs at the plants within three years.
Manufacturing is coming back in the form of new jobs. The jobs that the Chinese are having are becoming extinct. Product labels use to be stuck by hand in China even in mass production. Long gone are those days!
[1] http://www.heraldtribune.com/article/20120123/ARTICLE/301239...