For those of us with impanted metal body parts the WBI is a terrific improvement over the penalty box and pat searches where you must interact with screeners who either don't give a ()&(& or those who use the opportunity to act like the gestapo.

Flying out of Denver I never miss the opportunity to use the WBI lane, just so I can keep screener's funky hands off my body. I wish every airport had them. I just came back from HNL and then LGA last week and hated every minute of it at their security checkpoints.