George 'Johnny' Johnson

We are slowly and inevitably losing the generation of men who fought in and survived the last world war. Monuments to their courage and loss are dotted all around the world with many dedicated to the 55 thousand young men who lost their lives serving in Britain's Bomber Command. HARDtalk's Stephen Sackur speaks to 96 year old George 'Johnny' Johnson - the last remaining British survivor of one of the most extraordinary and most famous aerial missions of World War 2 - the Dambusters raid. It was costly and it not entirely successful. So why has it become such a part of Britain's national folklore?