Californian State Assemblyman Richard Pan (center) is the author of legislation that would bar higher prices for health insurance sold to smokers. Rich Pedroncelli/AP hide caption

itoggle caption Rich Pedroncelli/AP

Women smoke in New York City's Times Square. Spencer Platt/Getty Images hide caption

itoggle caption Spencer Platt/Getty Images

A cigarette warning label image approved by the Food and Drug Administration. Food and Drug Administration hide caption

itoggle caption Food and Drug Administration

In the U.K.-based program called Txt2stop, researchers sent smokers encouraging text messages, like the one above, to help them quit. Karen Castillo Farfán/NPR hide caption

itoggle caption Karen Castillo Farfán/NPR

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