Uber and CrowdFlower are two links in a growing supply chain of services that use APIs and human computation to put people to work. Uber uses CrowdFlower's API to pay someone to review the results of Ayesha's work, and, if it passes muster, it will process Uber's payment to her within minutes. If it doesn't meet the preprogrammed bar, Ayesha won't get paid for her efforts, nor will she have any meaningful opportunitiy to launch a complaint. the API isn't designed to listen to Ayesha.
she gets a photo of Sam and has to compare to his ID (to confirm that it's the same person) and has to do it before the timer runs out