Comment Doesn't mean what is measured won't be useful (Score 1) 162
to them. If they can detect the sort of brain activity that correlates with intelligence, certainly this can be expanded to other brain activity. Throw a Union Jack on their screens and see how they respond. Boom, state loyalty tester. Throw two naked guys on their screen, boom, sexual orientation test. Throw scenes of snipers shooting civilians, boom, black ops aptitude test.
The cover story, as usual, doesn't matter.