They are all signatories to an open letter (as are FT Science Editor Clive Cookson and myself), condemning the use of English libel law to silence the critical discussion of medical practice and scientific evidence. This is in response to the Simon Singh case, where the British Chiropractic Association has sued him for libel: he has announced that he is to appeal.

I dread to think the effect on discussing medical research in the press if Singh’s appeal isn’t upheld. You can add your name here, and I am sure your support would be much appreciated.