FlyerTalk Forums - View Single Post - The Definitive "Delta - TSA Pre-Check" thread
Old Aug 23, 2013, 2:28 pm
  #1622  
jackal
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Originally Posted by DrJohn999
Anyone else run into this lately? Or do I just fit an explosive profile?
No profile. It's a random counter in the WTMD--periodically, it beeps an indicator to do the explosives swab. It's not something triggered by anything except whatever random counter they have installed in the WTMDs.
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