Oooh please!!! Never tried any mccrystals all I dabbled in was the german style snuff or the modern toque.
Anthorn provide cites and references to credible research and don't just rely on ad hominen attacks.
Tobacco in and of itself doesn't cause cancer. What causes lung cancer is the inhalation of smoke particles irritating the lungs. What causes the breathing difficulties is the Co bonding to the oxygen carries in the blood and what causes the bronchial damage is the smoke particles and the coughing destroying the oxygen absorbing capability of the lungs by distorting and damaging the delicate transfer constructs that pass O2 from lungs to blood.
Nasal snuff use doesn't have very many risks if used in isolation. Dip/chewing tobacco is a potential influence of and for cancers of the throat. Smoking is an influence on how likely a person is to develop lung cancer however snuff doesn't AFAIK have any real investigation into the risks if used in isolation (and no the studies into it being used orally ala American market as a ladies equivilent and an alternative to dip doesn't count)
Also the statement there are no tobacco products risk free is wrong. Snus users have a lower risk of cancer development than none tobacco users based on research done in defense of Sweden refusal to ban the product.
Also if Tobacco caused cancer as you claim.there wouldn't be caveats on the health warnings. It is confirmed to increase the risk of Certain cancers however it cannot be proved to be a definite cause. It certainly increase ones risk of cancer to a high level however whether it is the trigger is still undetermined. It could be that simple inhalation of smoke is the cause and the plant matter burned is irrelevant. All that we know for certain is that tobacco use can be shown to be a contributing factor to high risk of lung cancer.
This is not helped by the fact that if one as a smoker shows a cancer the medical profession assumes it to be a result.of smoking and therefore the statistics for.cancer are skewed by what I would call lazy labelling.
According to cwrtain lobbying groups anyone who has ever.smoked in their lifetime has smoked 100 cigarettes is a smoker and any cancer suffered by a smoker is a direct result.of their smoking. When groups.like that have an influence on the data produced.... They bring huge bias and political posturing into the system.
How on a practical level would in taking snuff cause one to inhale carbon monoxide which is one of the major.danger of smoke.inhalation due.to it's per meant deformation of red blood cells.