Some items are deemed security risks and may be confiscated if they dont meet the TSA guidelines and if you do not follow certain conditions that can allow you to carry them on board
But I was stuck with cigarettes, even though I had cut down from 20 a day to a mere five some years ago
TLDR= Don't Light Things on Fire and Breathe them into your Lungs References Belzagui et al,, Cigarette butts as a microfiber source with a microplastic level of concern, Science of The Total Environment, Volume 762, 2021, Sierra Club- StopToxicTobaccoWaste.org Tapper, James
In fact, Masterbilt lost a case in 1939 wherein the court ruled that (via Casemine) "the device enabled a smoker who was driving a car to obtain a lighted cigarette without taking his eyes off the road, and the contrivance was advertised by the plaintiff as an automobile safety device." Keep in mind that seatbelts wouldn't become a thing for another decade (1949), when Nash Motors Company first offered them
Some cancers, like leukemia or lymphoma, can make it unsafe to donate