@BDV,
Hey BDV--if you want some real PC anti-smoking **** you should see the BBC science programme in which scientific progress in Europe, which now dominates most of the earth, discussed, in relation to the vast complexity of connections involved, the fuelling up on caffiene in coffee shops, which were known as "Penny Universities", but which were also well known to have a clientele which was as high as a kite on tobacco before the weed was toned down in the same way Coca Cola was in more recent times.
The BBC, having gone into bat against tobacco and having caffiene dispensers in every office, could hardly be strictly scientific about such matters. Not even in science programmes.