Sorry for being late to submitt my opinion about the electronic cigarette, known as the E-Cigarette.
As far as I saw the video, I couldn't find any bad point of using it.It is good for the environment by releasing no any harmful smokes.It doesn't have secondhand smoke, so nobody will be disturbed by the smell.Also containing no nicotines, you don't need to worry about health problems.Furthermore, the price is not so expensive and it is available easy.I wonder why Japan doesn't sell it for peopple around the country.
From the information I found on the internet, it said that there are some of them includes nicotine.And another health problem exists, such as burn and respiratory disease.I think Japan is concerend about the new problems and hesitating to sell them.Before the time comes, we have to study it properly.