Originally Posted by
gingersnaps
That likely explains why airport screeners have not improved at tests. In the early years of post 9/11 test success rate high and that rate has decreased to nearly zero over time.
People can not maintain a state of 100% focused red alert for long periods of time.
It's even more difficult when you are trying to maintain a state of ready alertness while looking over your shoulder and carrying on personal conversations with co-workers and playing with your cellphone with barking co-workers and overly-loud taped messages blaring in the background.
Perfect place to test someone's powers of concentration. TSA does nothing to make it easier for their folks to stay focused, ie, ban barking, personal conversations and cellphones at the checkpoint.