Attempts To Ban The E Cigarette - are you concerned about the dangers?

Already illegal in Australia and Hong Kong on safety grounds, there are now attempts to ban them in the United States (1) . It must be considered that we may moving towards a worldwide ban. 

Are you concerned about the safety of the E-cigarette? With full health tests not yet completed, are you worried about the unknown or do you feel they are a risk worth taking considering the known dangers of smoking?

What will e-cigarette smokers do if they become unavailable - return to smoking or seek alternative ways to quit?

Sources:

(1) http://www.wikipeers.com/news/7895-united-states-attempting-to-ban-the-e-cigarette.html