Originally Posted by
VPescado
In the other corner, we have the TSA attackers who point out that it would be impractical to rely on TATP or similar and ignores other more reasonable threats such as nitroglycerin.
Quote which would be detected by puffers or ETD swabs but WON'T be detected by x-rays.
Incidentally the 3-1-1 nonsense does nothing that I can see to inhibit mixing up a batch of nitroglycerin. So we are left with the worst of both worlds: A costly and annoying security process and no mitigation to a real threat.
I believe the precursors to nitro would also be detected by puffers and ETD swabs.
And even then, I believe it still has to be mixed in very controlled condtions ... ones likely not to be found on board a plane or in an airport.