Do vape pens help teens quit smoking?

Nicotine is thought to be the most addictive substance available over the counter; but teens find out too late that once they start smoking, quitting is harder than they predicted.  Many come around to wanting to quit tobacco, and hear e-cigarettes (or "vape pens'), which contain nicotine but no tobacco, being touted as a transitional tool.  "I heard vape pens were a good alternative to actually smoking cigarettes... I've tried the patch, I've tried the gum.  I've also tried cold turkey.  None of it was successful so I thought I'd try something else."  Are the rumors true, or are vape pens another harmful addiction?   See part two in a video series on vape pens, on Youth Radio.[youtube=http://youtu.be/_ci8KH9fwn4]