WHO Director-General Dr. Margaret Chan says there is clear evidence that there is no safe level of exposure to second-hand tobacco smoke.Interesting. Yet, Dr. Chan insists only that smoking in public places be banned, instead of the obvious answer: ban all smoking everywhere.
If there is "no safe level" of secondhand smoke, logic dictates that there is no safe level of first-hand smoke. Therefore, in the interests of everyone's health, we need to ban tobacco.
As well as automobiles, campfires, and paint, because fumes from these things are just as dangerous as second-hand smoke. In fact, the exposure to pollutants from car exhaust is substantially greater than from cigarette smoke.
But of course actual public health has nothing to do with it. Puritanical busybodies feel compelled to force you to act in accordance with what THEY think is good for you. If you make a decision different from their beliefs, it's important to their egos and self-worth to insist on a law to FORCE you to do what they want.