We hear a lot about the bovine brain disease BSE which was passed onto humans, and the possible cures which science might effect. But how often do we hear that BSE was almost certainly passed on to other cattle because scientists had encouraged farmers to force their animals to eat concentrated foods which contained beef products?
Going back in time, some people think that Hitler invented the revolting experiments performed by Dr Mengele on human beings and animals.
Irrationality
But the Nazis did not invent these things. The only difference between Hitler and previous governments was that he believed, with babyish credulity, in science as the only truth. He allowed scientists freedoms which a civilised government would have checked.
I am not suggesting that any British scientists are currently conducting experiments comparable to those which were allowed in Nazi Germany or in Soviet Russia.
But I see the same habit of mind at work in Professor Nutt and his colleagues as made those mad scientists of the 20th century think they were above the moral law which governs the rest of us mortals.
The worship of science is the great superstition of our age. The scientific adviser speaks and we are all supposed to believe him, whether he is promoting crops genetically modified to withstand huge doses of poisonous weedkillers and pesticides, or tampering with the origin of human life itself in so-called stem cell research.
Those who dare question scientists are demonised for their irrationality. Global warming may or may not be a certainty, but anyone who queries it has his sanity questioned. Cast doubt on these gods of certainty and you are accused of wanting to suppress free expression - which is the argument now being used by Nutt and pals against the Home Secretary.
In fact, it is the arrogant scientific establishment which questions free expression. Think of the hoo-ha which occurred when one hospital doctor dared to question the wisdom of using the MMR vaccine.
The point here is not whether he was right or wrong - it was the way in which the scientific establishment closed ranks in order to assassinate him. There was a blanket denunciation of his heresy, just as there is if anyone dares to point out some of the mistakes made by that very fallible genius Charles Darwin.
Science rules - and it does so with just as much energy as the old Spanish Inquisition that refused to allow any creed other than Catholicism, and with the Inquisition's need to distort arguments and control the brains of men and women who might otherwise think for themselves.