"things like glances to something off-screen"
I often look up at the ceiling when I'm thinking, and sometimes I just look around to rest my eyes, particularly if I have to stare at a screen for any length of time. So that makes me an exam cheat?
Until some sensible metrics of what exclusively constitutes cheating are thought up, tools like these will discriminate unfairly on many more grounds than skin colour. People who design such systems should consider the real problem before coming up with the rules.
Biting the hand that feeds IT
