In a 2002 paper Charles Goldenbeld, transport researcher, proposes four dilemmas that arise from the introduction of safety countermeasure technologies. These dilemmas are the core of a research report on the acceptance of speed cameras in the UK, US and Australia. link
Goldenbeld's dilemmas are:
Credibility dilemma: encompasses concerns about the purposes of the countermeasure and the interests in which it is pursued.
Legitimacy dilemma: refers to the fairness of the countermeasure
Implementation dilemma: occurs where the acceptance of a measure is hampered because difficulties associated with implementation are not compensated for
Social dilemma: occurs where there is a mismatch between individual preference and collective interests
With minor adaptation these dilemmas are a useful frame for thinking about the history of teaching machines.