I just saw an interview with Boris on the AM show where, when cornered about his changed attitude to the great global warming debate ("I agree with Bush it's all leftie nonsense" to "I agree with Kyoto we've got to do something") he said "Well when Charles Darwin was young I'm sure he believed in the bible and all the rest of it, but when he found proof of evolution, he changed his mind".
In other words, "Yes I was wrong but, having seen the evidence, I'm big enough to acknowledge that and now think we need to take action".
As opposed to: "I was right, and even if I was wrong, I would have still been right"!
It is a new dawn, is it not? 😉