It's increasingly hard to find a bar in the U.S. where you can light up a cigarette, and most Americans are happy about that. 

A Gallup poll finds that 58 percent of Americans support a ban on smoking in public places, roughly the same percentage that supported such a policy four years ago. Forty-one percent oppose a public places ban.

While there has never been a serious effort in recent history to ban all tobacco use, the Gallup poll shows that a quarter of Americans believe that smoking should be completely illegal. Although the number of Americans who support barring smoking entirely has doubled since 2007, it is hard to imagine that U.S. citizens will ever be barred entirely from enjoying tobacco in their own homes, particularly in the midst of growing support for the decriminalization or legalization of marijuana.