practice. he have a security cards, faster screener will win $2,000. there is dramatic music. >> tsa trains it's screeners, too, but not like this. in this competition they search bags and identify forbidden item. here is pipe bomb. then they rush to retest the bag. >> in this test they look at slides of people and try to remember details. how many buttons are on her sleeve? >> four? >> yes. >>. >> john: the private company makes these screeners special. >> they have to be able to look at something and look at a lot of people and be able to retain what they saw. you find out who is really good at this. >> we are really competitive. >> they love the contest. >> so usually, if you tell them