The problem, even though it is legal and you can't drive down the road without seeing a sign in the window "WE SELL $^#", there is a dilemma. I'm sure CBP they do their very best to intercept this stuff at airports and border crossings, synthetic compounds from China probably do get through and into the mainstream legal market. Bottom line, the kids have no clue what could be in that stuff and the nicotine vapers and now have to suffer the consequences. The technology used to intercept these synthetic compounds is very impressive, and of course the dogs are amazing. However not sure if there will ever be a full proof why to stop the stuff from coming in overseas. Risky, dangerous and warn your kids if they are of that age like my kids are, STAY AWAY!