Here's another positive take on e-cigarettes from the UK's Royal College of Physicians - "What you need to know about electronic cigarettes" (March 20,2014):
"Despite the controversies, it is clear that e-cigarettes are far less hazardous than is tobacco. With more than a million UK smokers using them to help to cut down or quit smoking, they are proving to be valuable harm reduction and cessation products and could make a substantial contribution to reducing the burden of death, disability and poverty currently caused by tobacco smoking. Health professionals should embrace this potential by encouraging smokers, particularly those disinclined to use licensed nicotine replacement therapies, to try them, and, when possible, to do so in conjunction with existing NHS smoking cessation and harm reduction support.
E-cigarettes will save lives, and we should support their use." (emphasis mine)
You can read the entire document here:
What you need to know about electronic cigarettes | Royal College of Physicians