“Specially trained security personnel” will be watching passengers for “micro-expressions” that will reveal treacherous agendas and insidious intentions at airports around the country. These agents, who may literally hold your fate in their hands have been given a lofty, Orwellian name: "Behavior Detection Officers."
TFA does a good job running down how idiotic this is, and points out one of the BDO's strategeries:
Here’s where it gets really absurd. Apparently, these Behavior Detection Officers work in pairs. One scenario is that an officer might move in to “help” a passenger retrieve their belongings after they’ve been screened. And then the officer will ask where the passenger is headed. If the passenger’s reaction sets off alarm bells in the officer’s well-trained mind, another officer will move in and detain them.
Yeah, after standing an an hour long line to get through security some stranger comes up and grabs my bag and asks where I'm going. How could you do anything but smile and answer honestly?