They ask the wrong question. The question should be posed to the two "experts" quoted in the article:
How safe is it to continue smoking?
Their answer will no doubt be something like, "Well, we said, over and over, smokers should use the FDA-approved smoking cessation treatments."
To which the response would be, "Well, duh! Why didn't WE think of that. Sorry about the sarcasm, but you seem to be unaware that every year 40% of smokers try to quit, (NOTE: in 2009, that would have been about 18 million people).
Between 1990 and 2009, the number of smokers hovered right around 45 million. That tells us that very, very few people are succeeding by following your advice.
"The CDC tells us that about 395,000 smokers will die each year*, and about 1000 people per day (365,000 / year) become new daily smokers**. Do the math.
If the number of smokers has been remaining static (up until 2010, that is), then only about 30,000 smokers managed to quit each year. That represents 1/10 of 1% of the 18 million who tried to quit. What happened in 2010 to make the number of smokers start going down? People started using e-cigarettes instead of using your recommended products. So it would appear that switching works better."
To which they would no doubt answer, "You have to keep trying."
To which our next response would be, "Again, how safe is it for me to continue smoking?"
To which if they are honest, they might respond, "Well, as you know that really isn't safe at all. You should keep trying and quit."
To which we might press the matter, "How much more hazardous is it to switch to an e-cigarette and stop inhaling smoke immediately than it is to continue smoking, quitting, and relapsing over and over for years on end?"
To which they will probably weasel: "Well, we really don't know for sure how hazardous using an e-cigarette might be."
To which we can reply, "Well, we can tell you from personal experience that we feel healthier and our doctor tells us we ARE healthier since we switched to an e-cigarette. What do you have to say about that?"
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*
CDC - Fact Sheet - Tobacco-Related Mortality - Smoking & Tobacco Use
**
CDC Online Newsroom - Press Release - US high school students improve motor vehicle-related health behaviors June 7, 2012