More than 70 percent of Indonesian men smoke. So do more than 40 percent of 13- to 15-year old boys. And then there are the legions of even younger smokers. Despite recent bans on smoking in public places and prohibitions on cigarette ads, public-health activists describe Indonesia as a “playground” for big tobacco companies like Philip Morris, which makes the country’s No. 2 cigarette as well as the ubiquitous brand evoked by Michelle Siu‘s photos of the kids she calls “Marlboro boys.”