Doctors think that the World Health Organization should ease off against electronic cigarettes, if only because the dangers have to be less harmful than the real thing. For its part, however, the WHO disagrees, publishing a report saying that it wants these nicotine delivery systems to be regulated with the same scorn as cigarettes and cigars are today. Research into the relative harm of "electronic nicotine delivery systems" is still pretty nascent, but the report claims that while the water vapor they emit has a smaller concentration of nicotine, it may spread more widely in the air -- increasing the risk to children and pregnant women in the vicinity. The WHO concedes that e-cigarettes are preferable to the real thing, at least for now, but only in nations where tobacco smoking is being rapidly reduced. The downside, of course, is that there's no consensus -- beyond a few studies -- that the technology actually helps people to kick the habit.