Stumbled upon this link this morning on FB:
Getting all smokers to switch to electronic cigarettes would be the "greatest health advance since vaccinations," Professor David Nutt claims.

The former government drugs advisor said any side effects of using e-cigarettes would not be as harmful as smoking tobacco.
BBC News - Nutt: E-cigs 'greatest health advance' since vaccines

There is a little audio, so check it out. I like that some people in the UK are talking sense and are able to get their voices heard somewhere like the BBC.