I think that smokers are fully aware of the negative side of tobacco. Pointing out the obvious is of no help... Why are you being so self-centered and think that others should change to please you... Smoking is a personal choice and all these rules against smoking in public places are just stepping all over one's rights... All the anti-smoking propaganda is nonsense, and I see it more like a campaign against starting to smoke...

If it were that lungs would keep all that tar in them, that would mean that other chemicals and dust that freely float in the air would get stuck in there too... But I've never heard of somebody that coughs up dust and sand... It's just nonsense...

"“It is, however, more useful than most math post 9th grade.”
Sorry, but I’m an engineering student, and I couldn’t do anything worthwhile with 9th grade level math or below. Most of the technology you take for granted would have never been developed without even basic calculus, much less more advanced concepts."

you're right, maybe... but NOT ALL STUDENTS will become rocket engineers... so they might as well give us a brake and hold that useless stuff for college, after everybody settles for a profession in life...