This is a key point because lie detectors are an invention they want to suppress.

The technology may have reached a point where your phone could function as a personal lie detector - just point, scan, and record.

When technology has reached the point that it can end the power of the liars who have controlled the world since the beginning, it will be suppressed.

They might use it against the masses - brain scanners and facial recognition software, reading micro-expressions, and miniature spy devises of every kind to find out anything you do or think, for the purposes of manipulating and oppressing you, but they won't allow you to use that technology on them.