Sounds to me like fair research but biased, sensationalist reporting. I thought it was fairly obvious that putting anything inside your lungs other than straight up air isn't healthy. I think really, the media need to start putting up comparisons along the lines of "E-cigs are just as unhealthy as a diet that's sliiiiiightly too high in cholesterol", rather than this sensationalist "E-cigs could KILL...... mice" shit.