I once heard from a scientist that there is so much pesticide/insecticide residue in tobacco that when it burns in cigarettes it actually creates radioactive substances that are inhaled.
That's scientifically impossible. I have grown tobacco, and have never had to use any insecticides on it. I'm sure commercial farmers do, but it isn't any worse than what you would find on that apple, lettuce, cabbage etc. So, what's the diff. if you eat it or smoke it? HINT: Herbicides and pesticides have a short life. They degrade and become ineffective within 24-48 hrs. Of course we have the malation freaks out there that insist it's a deadly poison, but in reality there is no proof of that. After 100 years of use you'd think we would see an example of it's toxic effect, say a smart democrat?