Gorra fag?

Think the powers-that-be (whoever they are) need to get their act together over the use of e-cigarettes.  There are those who want to ban them - or at least to the same extent that real cigarettes are banned, and then the tobacco companies seem to have woken up to the potential market opportunity they present and are pushing them.  Many people take the line that we should fear the unknown and err on the side of caution by restricting their supply and use - at least until more is known. The most sensible approach so far seems to me to have come from researchers at a university in London who say that, although e-cigarettes may prove in the long run to have health issues, there is already ample evidence that they are significantly less harmful than real cigarettes, and therefore smokers should be encouraged to switch to vaping (by the way, is it vayping or vapping?).  I think we badly need an authoritative lead on the subject.