cover china because apple has all of its products made there. it's caught up in another country's industrial revolution and a lot of that is out of apple's control. >> four workers died in 77 wounded in explosions at two apple supplier factories. caused by careless safety procedures. the sovl si is to sparkle apple's touch screens were powerful, but dangerous, cause, nerve damage that led to weakness and loss of touch in workers. they complained about low wages and pressure to meet adams's deadlines. in the chinese factories of many tech companies, copper, chromium and others heavy metals saturate the waterways. sometimes chemical levels are so high that sewage treatment plants can't adequately clean the water forever to be used