I don't know if there is any rule against bringing chewing tobacco onto airpanes, but I've never had mine taken away from me at security.
Yes, you can have smokeless tobacco on an airplane, but you are not allowed to chew it while on the plane. You can carry it in your carry-on luggage or check it in baggage.
Yes. I leave mine in my carry on and have had no problems with the TSA.
There are no calories in smokeless tobacco.
Dissovable smokeless tobacco lozenges or strips.
there is no tar in smokless tobacco
Yes 82% of smokeless tobacco users are male.
snuff
no
NO!
It takes roughly 3 days for the signs of smokeless tobacco to leave the system.
Nicotine.
Its bad for you
snuff.
No it is just a myth