One of the big challenges with software to detect lies is getting good training data. I would be suspicious of anything that wasn't trained using actual data fr

One of the big challenges with software to detect lies is getting good training data. I would be suspicious of anything that wasn't trained using actual data from the particular domain that it was going to be used in. So maybe the best that can be said for this effort is that for the first few years they should ideally report scores that are actually just random (but not tell the actual border agents this, obviously) until they get enough data to train a reasonable classifier. I wouldn't be surprised if this is what is actually being done.