Edit this Published in Freakonomics Radio How to Make People Quit Smoking Listen 32 min Queue Download this audio Want to embed this player? Use the code below. More info. <iframe frameborder="0" scrolling="no" height="130" width="100%" src="https://www.wnyc.org/widgets/ondemand_player/wnyc/#file=/audio/json/361468/&share=1"></iframe> Share on Facebook Share on Twitter Email a Friend The war on cigarettes has been fairly successful in some places. But 1 billion humans still smoke -- so what comes next?