Originally Posted by
TSORon
Yes, its not really all that uncommon. Explosives are used not just by terrorists and the military but by quite a few different commercial concerns and police agencies. Hence the reason we dont make a big deal out of it, its about like finding a 1955 penny in a bucket full of pennies.
But some people report getting an extra intrusive back room custody frisk as a result of a positive swab. I'd call that a big deal. And what about the guy who got his shoes confiscated? And the person whose hair conditioner caused, what was it, two hours of freaking out over everything in her bag, with multiple TSA folks and LEO's involved? These are anecdotes, yes, but there are enough of them to call your "not a big deal" into question.