This is your Data Sheet for Friday, July 19, 2019.: This is the web version of Data Sheet, Fortune’s daily newsletter on the top tech news. To get it delivered daily to your in-box, sign up here. I'm in Utah this morning, in transit from Brainstorm Tech and the brilliant blue skies of the Rockies, back to Hong Kong, where summer swelter is in full swing—and the government has just issued an ominous air pollution warning.