In his excellent review of Allan Brandt's
The Cigarette Century,
Robert N. Proctor reminds us that every year five million people die prematurely from smoking and the number will grow to about ten million in the next two decades. A hundred million people died prematurely as a result of smoking in the 20th century and ten times that will die in the present century if trends continue.
It was not until the 1990s that manufacturers admitted any real harms caused by smoking. Part of this about-face was dictated by a change in legal strategy, which by this time had recentered around the argument that 'everyone has always known' that smoking is bad for you--so people have only themselves to blame for whatever diseases they contract from the habit.
What a disappointment after this to come across
Christopher Hitchens, opposing a ban on smoking in public places -- or keeping an end of the swimming pool for peeing in.
See also Chris Jordan's
Running the Numbers
An American Self-Portrait (scroll down for image of 65,000 cigarettes, denoting the number of US teenagers who become addicted every month).