David has compared the dangers of (high risk) alcohol and (low risk) Ecstasy to highlighted the irrationality of the current system. Last year he got into trouble for pointing out the fact that horse ridding was more dangerous than taking Ecstasy. With colleagues he produced the chart below comparing the harms of both legal and illegal drugs.
What I found really interesting was an aside he made that he was sure he could create an alcohol substitute that had all the "positive" attributes of alcohol but had far less harmful effects. However such a 'drug' would be, he felt, banned under the Misuse of Drugs Act. I will follow up this madness and find out exactly why and the role of the Alcohol Industry in such decision making.