Originally Posted by
TSORon
I have seen an ETP once at SFO, but never have gone through it. Of course we all (TSO's) are aware of the system, but until we get one at my airport I wont be trained on it. So I dont know all of the things it detects.
My understanding is that most if not all of the puffers are off-line due to costs and maintenance issues. We may never see that machine again in that incarnation.