This is impressive, and certainly technology like this will probably find lots of very good uses, but I can't help imagining(!) dystopian societies where "thoughtcrime" can actually be monitored and "made actionable".
A world in which "you have nothing to hide" turns into "you have nothing you can hide" is immensely disturbing.
A world in which "you have nothing to hide" turns into "you have nothing you can hide" is immensely disturbing.