NEW: @cwarzel and @stuartathompson pieced together some stories from Pasadena, Calif., over a period of several months.
Their eye in the sky wasn’t a network of traffic cams or satellites. It was the data spewing from smartphone apps.https://nyti.ms/36Yfyeq
0 replies
24 retweets
30 likes
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.
This account is no longer actively updated. Please follow