http://www.travelskills.com/tktarchive/2004/sep.htm
SAFETY AND SECURITY NEWS
CHANGES AT SCREENING CHECKPOINTS. With colder weather on the way, the TSA announced that all passengers must now remove their coats before going through metal detectors. Also, the AJC says that the TSA has asked ATL officials to remove the airport security shoe detectors that light up if you have metal in your shoes. Apparently, the shoe detectors were designed by screeners, but aren't good enough for the TSA which required their removal because they were "not certified."
(Sounds to us like a politically connected company has cozied up to the TSA and will soon be the sole—no pun! -- supplier of such devices. Umm-hmm.)