I am surprised that you think the BBC gives equal time to both sides of a debate . It does of course depend how you define fairness. If it means giving the greater time to the ruling paradigm , and perceived number of adherents to a view , it would be seen as fair . I sympathise with Steves example of holocaust deniers and I certainly don't like holocaust deniers getting a hearing , but I wonder if even such extreme and nasty views are completely prohibited from discussion, will it just give them conspiracy credibility .    At present there are still a few eyewitness testimonies to be heard as well as other empirical recorded data . This should at least prevent denial ideas spreading beyond the haters.