I'm curious as to what they would even do with an unlabeled cartridge? It could just be nicotine e-juice. I think they'd have to either object to the form of the object (no vape cartridges allowed, for example), or actually crack it open and test it for THC content. Seems like they'd be unlikely to bother with that for such a low level possession offense.
Mine aren't entirely unlabeled. Pax Era batteries are specifically made for cannabis and their pods have strain names on them. Many of the standard cartridge batteries also have brand names on them. I doubt most TSA agents would recognize something like that, but it's always possible.
It's a very different consistency and all the THC carts I've seen are all amber in color. It's just very low on anyones list of things they care about. Even the dreaded TSA
