On the safety side, we can't help wondering why parents would let children wander off by themselves armed only with only a tracking device, rather than watching them with their own eyes. If a child is so young or irresponsible that his parents want to fit him with an electronic nanny, what he probably really needs is for those parents to hold his hand and pay attention to him instead. Alienating, authoritarian technologies only contribute to an alienated, cowering populace, whether the setting is an amusement park, a school, a hospital, a birthing center, or a home.

These men realize that once on a school bus, children are a captive audience. Any captive audience can be exploited by forcing them to hear advertising. So Steven Shulman and Michael Yanoff developed BusRadio and were greatly aided by the venture capital moneyman Robert Davoli of Sigma Partners. As far as I can tell, this is the first time Sigma has chosen to financially back a very controversial company.