Please turn on JavaScript. Media requires JavaScript to play. A senior medical figure has said lessons must be learnt from recent events involving NHS staff and emergency patients. Lord Ara Darzi has said a culture of "coping and collusion" must end at all levels of the health service. But the British Medical Association said he was talking out of a "political wind tunnel". The annual British Medical Association conference is being held in Bournemouth and Poole. Lord Darzi, who chairs the Roya