This site contains detailed examinations of the 1993 EPA study on secondhand smoke, the first World Health Organization study on SHS, and the Helena study that claimed smoking bans result in an immediate drop in heart attacks. It also contains, in blog format, excerpts from hundreds of articles about the financial damage caused by smoking bans.
The American anti-smoking crusade has been very successful. There are now more ex-smokers in America as there are smokers. But even after thirty years of constant urging to kick the habit, about a quarter of the population still chooses to smoke. Source