Okay, the last thing I plan to do is promote smoking, but one must be reminded that the patients to whom that article refers are heavy, long-term smokers. Personally, I had at least 2 sinus infections per year throughout high school, UNTIL I started smoking. I'm a light smoker, at about 2 cigarettes a day now, but have been smoking that way and socially since age 17 (I'm 24 now). I heal incredibly quickly, my resting heart rate is a healthy 64 beats per minute, I rarely get sick, despite being on medications for my clinical depression, and have had doctors compliment me on how good my lungs are (before I tell them I"m a smoker).
So is discrimination against smokers fair? I think it's easy for people to generalize about smokers, thinking that anyone who has a cigarette with friends at a bar on the weekend is automatically a chain smoker, like when a person is seen drinking a lot at a party and is assumed to be an alcoholic. Situational factors exist regardless of the person and the context in which you see him/her, and generalizing people on the basis of one habit is ridiculous.
The tone of this article seems to suggest that the last thing TSs should do is smoke, because they'll be subjected to further scrutiny than they already are, but this is just an overgeneralization, in my opinion. That's how many TSs end up being discriminated against.
Rafe