Army Captain William Krueger studies CT scans at the National Naval Medical Center in Bethesda, Md. CWO4 SETH ROSSMAN/NAVY VISUAL NEWS SERVICE hide caption

itoggle caption CWO4 SETH ROSSMAN/NAVY VISUAL NEWS SERVICE

National smoking rates haven't budged. But a better job in some states gives anti-smoking advocates hope that progress can still be made. Joe Raedle/Getty Images North America hide caption

itoggle caption Joe Raedle/Getty Images North America