premise: Sure, the school bus is crawling with safety violations and doesn't contain seat belts and will be taking the kids to classrooms run by teachers who never actually had to take the subjects they're teaching, but at least according to the WSJ Business Bulletin, in a few years there will be satellite-based technology available to families that will let them know to the second exactly when the bus is arriving.
hypothesis: They point to the future where parents and guardians may receive notifications instead of waiting for the bus to arrive.