[GarySpFc]

Obviouly you are a smoker. I was at one time, and fully understand the bias by those who would sell their first-born for a smoke.

[mugs99]

Obviouly you are a smoker

Nope, I'm not a smoker. It just bothers me that some are willing to take a liberty from another in the name of a percieved danger. A real scientist gave an easy to understand example of what's going on with these "studies":

Ponder this - The average life expectancy of hunter/gatherers was about 20 years.
By 1900 with several thousand years of natural selection global life expectancy was about 40 years.
The automobile was invented roughly at that time. Today, global life expectancy is about 66 years.

Conclusion - the introduction of auto exhaust into the atmosphere has increased global life expectancy by 26 years, or 65%.

Of course, the conclusion leaves out a lot of factors, just like a lot of so-called studies on second hand smoke.
.