David Ozanich smoked outside the Live Bait bar in New York City in April 2003, a few months after a ban on smoking in bars and restaurants took effect. Diane Bondareff/AP hide caption

itoggle caption Diane Bondareff/AP

A man smokes a bidi on "No Tobacco Day," May 31, in Allahabad, India. These small, hand-rolled cigarettes are popular in India and Bangladesh because they are far cheaper than regular cigarettes. Rajesh Kumar/AP hide caption

itoggle caption Rajesh Kumar/AP

Back in 1998, Colleen Maxwell, then a 23-year-old student, smoked outside a San Diego bar, just weeks after California became the the first state in the nation to to ban smoking in most bars and gambling casinos. Joan C Fahrenthold/AP hide caption

itoggle caption Joan C Fahrenthold/AP

A competitor stops for a cigarette after he broke down during the Enduropale race at Le Touquet Beach on February 22, 2009 in Le Touquet, France. Paul Gilham/Getty Images hide caption

itoggle caption Paul Gilham/Getty Images

R.J. Reynolds' Orbs, a dissolvable tobacco product. The Food and Drug administration is studying the flavored products. Charles Dharapak/AP hide caption

itoggle caption Charles Dharapak/AP

There are new questions about the value of nicotine patches and gum in helping people quit smoking. Patrik Stollarz/AFP/Getty Images hide caption

itoggle caption Patrik Stollarz/AFP/Getty Images