Originally Posted by
BubbaLoop
The most central problem of all these techniques is that they are an inappropriate methodology for the task at hand (detecting explosives). They cannot distinguish an underwear bomb from an adult diaper, or a tampon from a hidden pack of prohibited material. They will, inevitably, produce millions of false positive results, and the passengers privacy will be violated to "resolve" these alarms.
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On the other hand, ETD is safe, non-invasive and actually does detect explosives.
Except that as currently implemented, ETD swabbing produces untold numbers of false alarms on passengers who then must have their crotches rubbed. As far as we know, thousands and thousands have alarmed and been subjected to this treatment with NO incident of anyone being actually found carrying explosives. Even if there was one incident of success, such poor results argue against any reasonability of this test.