the big tobacco possibly adding more chemicals sounds like a 9/11 conspiracy theory to me. it makes no sense. and if their magic additive chemicals make their products more addictive than nicotine, are we all super humans able to break those bonds?
interesting fact, flavor oils largely have trace amounts of carcinogens in them.
It's not a conspiracy, it's fact. They admitted to engineering aspects of tobacco in the tobacco trials, and lot of their research and techniques were released to the public as part of their agreement to those trials. BT has added additives to cigarettes to change how the nicotine is absorbed by the blood, for example, to shorten the satiation period (ie. you want more, sooner). They list over 2000 possible ingredients added to cigarettes to do things like that.
And, if you think that BT is the only companies researching things like that, think again. The food industry, for instance, has researched widely and deeply into what people crave, how to make them crave more, and talk about it openly in trade publications and research. Why do you think so many products are loaded with sugar or sweeteners? They know that the American palete is sweet, and if it's sweet, people will buy more. All of that can be hidden in the label as 'artificial sweetener" and "additional flavoring and colors".
We don't live in a world where large multi-national companies make pure products that are just base ingredients. Almost everything you buy is being engineered in ways that would make your head spin. Even vegetables are now being engineered with GMO products.
It's not conspiracy, it's science, it's well known, and it's documented.