Tim Cook was able to placate Elon Musk within two days, but the chaos at Foxconn's "iPhone City" may become the greatest test of Cook's diplomatic skills yet (Patrick McGee/Financial Times)

Patrick McGee / Financial Times:
Tim Cook was able to placate Elon Musk within two days, but the chaos at Foxconn's “iPhone City” may become the greatest test of Cook's diplomatic skills yet  —  Apple chief placates Elon Musk but faces bigger questions over iPhone supply chain  —  Tim Cook was already battling …