“Transparency is so important,” said Cook. Indeed, the company is aggregating overtime and hours worked for workers abroad. In January, Apple tracked weekly hours for 500,000 workers. Eighty four percent of suppliers complied. “We can do better,” said Cook.
http://m.zdnet.com/blog/btl/apples-cook-bets-on-transparency-to-damp-supply-chain-flap/69396?tag=nl.e539