By Russell Boyce
Being a picture editor for a wire agency at the London 2012 Olympics is like being a referee at a title-deciding football match. If everything goes well no one really notices you; but one big mistake and you are the most hated person in the stadium. If you call it wrong and miss the picture that captures the vivid moment of sporting agony or ecstasy you risk the jeers and frustrations of the whole team. The reward? A good picture editor has the chance to select that defining picture, the shot that the photographer doesn’t even know he or she has taken, or to crop a frame that changes a good picture into a great one.