> It is possible that, despite the interest, the technology isn't at a state where it would actually be useful in practice. Well, given that unreliable interro

> It is possible that, despite the interest, the technology isn't at a state where it would actually be useful in practice. Well, given that unreliable interrogation techniques are pretty commonly used historically, maybe it's more of a value thing. i.e. water-boarding is unreliable and cheap, fMRI is unreliable and expensive.