✔ 最佳答案
TSA isn't in charge of enforcing vaping laws or age restrictions. As long as you pack the e-liquid and batteries properly in your carry on there shouldn't be problems.
I would suggest not bringing it if is a worry. There is no real law that I have read that says you can't possess them but police could take it from you if they want
You certainly will not beable to walk into a vape shop and purchase anything