Second-hand smoke is tobacco smoke blown into the air by a smoker and inhaled, indirectly, by a non-smoker.
No one claims that second-hand smoke is good for you. However, as far as how bad for you it is (or isn't), there is plenty of exaggeration by wingnuts and moonbats on both sides of the aisle.
 Some people who say that second-hand smoke causes serious health problems
- The International Agency for Research on Cancer (IARC)
- WHO but what would they know, and who are they to know anything about it?
- The U.S. EPA, as shown here, but they're a bunch of eco-nuts
- The BMJ but they're in the pay of Big Pharma
- The European Commission Public Health Section , and we all know where Hitler came from.
- The City of San Rafael, California, even when it's not second hand.
- The British Medical Association, though it was forced to admit error, deception or both in its claims regarding the damage involved, as the study on which they were based reached totally incompatible conclusions.
- Dr. Paul Cameron, the homophobe from the Family Research Institute, who was one of the first American scientists to investigate secondhand smoke. He usually brags about this, such as when he said: "I generated the first published facts that implicated exposure to second-hand smoke as a correlate of lowered health. I also was fairly active in the media — proposing social policies to diminish smoking on the basis of my research. Today you pretty-much live in my world — a world that I had a significant part in conceptualizing and bringing about". 
 Some people who deny that second-hand smoke causes serious health problems
Higher cancer risks have been found in eating mushrooms, drinking milk
, using mouthwash, wearing a bra, and keeping pet birds. Statistically, you are much more likely to die in a bicycle accident, or from being left-handed and using right-handed things, than from exposure to smoke. (I swear I’m not making this up!)
He swears he's not making it up, so it must be true! And since bicycle accidents also kill people, there's not really a problem anyway?
In addition, it should be pointed out that wearing a bra does not cause cancer, although, to be on the safe side, it is recommended that females (specifically those aged 18 to 40) do not wear any upper-body garments. You can never be too safe, right?
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