Supposedly the TSA is going to stop sending people through PreCheck who haven’t registered for PreCheck (or one of the other programs that comes with PreCheck).
They’ve said this before — an end to one “managed inclusion” program, but a continuation of another. The TSA has sent ‘Behavior Detection Officers’ to pick people out of line for expedited screening. These staffers have had a short course in mind reading pretending to be Israeli reading body language to pick out who is a threat and who isn’t, but there’s no indication that the training is effective or that the employees are any good at it.