Evan and his guests discuss McDonald's. After a rocky period in the middle of the last decade, how well has the global burger chain managed to revive its famous fast-food formula? They also debate whether the progress of radical new technology has slowed down. Evan is joined in the studio by: Greg Lucier, chief executive of US biotechnology company Life Technologies; Rita Clifton, chairman of branding consultancy Interbrand; Jill McDonald, chief executive of McDonald's UK.