In Fridley, a Minneapolis suburb, school officials are driving nervous teachers and buying families groceries. At dismissal, the superintendent patrols for federal agents.
In the predawn darkness, the teacher slips out of her apartment, into the idling car of a colleague waiting in her driveway.
Normally, the teacher, who moved from the Philippines a year and a half ago and does not yet have her own car, would Uber to ... [864 chars]