alt Hacker NewsI would view skeptically any testee who turned in a perfect score.
When you check in at the airport, the machine asks you to certify you are not carrying banned items. Of course, one wanting to break the law and carry banned items would certify it. The purpose is that if you get caught with the banned items, and you certified you did not, it's an extra charge they can paste you with.
Once we carried dangerous (not banned) items and selected yes and the first action by the attendant was to come over and say we selected yes by mistake and she selected no for us