Originally Posted by rar indeed
If the TSA used available screening technologies (ETD swab, puffer...) nitroglycerin wouldn't be a problem.
That "might" be right, but:
1. How much is it going to bog the line down if we have to use the puffer on everyone (or everyone who carries any container on board), and the ETD swab, and then wait for the analysis?
2. NY Times article suggests that puffer won't work for a really careful terrorist, who eliminates trace amounts. And ETD only works if you swab the right thing. EVERY contact lens solution bottle? Every water bottle? Gonna take some time.