October 4, 2016 - 19:44
...is this very strong piece by Todd Frankel, published in the Washington Post on Sept. 30:
"The cobalt pipeline: From dangerous tunnels in Congo to consumers’ mobile tech"
traces the supply chain from small-scale Congolese mines, to a Chinese company that
supplies some of the cobalt that is used in Apple’s iPhones:
https://www.washingtonpost.com/classic-apps/the-cobalt-pipeline-from-dangerous-tunnels-in-congo-to-consumers-mobile-tech/2016/09/30/66103382-5a8c-11e6-9767-f6c947fd0cb8_story.ht