Audits of working conditions are under way at Foxconn's manufacturing plants in China, a key link in Apple's supply chain of iPhones, iPads and other devices. The effort will include visits to at least three sites, "each with more than 100,000 workers," says Auret Van Heerden, president of the Fair Labor Association.
"So we've taken a representative sample of over 35,000 workers," Van Heerden tells All Things Considered co-host Robert Siegel, in an interview airing Wednesday.