Panorama investigates fraud in the National Health Service. With the NHS under financial pressure as never before, reporter Fiona Walker finds fraud in the NHS could be far greater than benefits fraud but with fewer resources to tackle it. The programme hears claims that the health service in the UK is losing billions every year to fraudsters - enough to employ 330,000 new nurses. In Britain's 21st century health service, where multimillion private contracts are up for grabs, Panorama goes in search of the fraudsters to reveal their crimes and highlights calls for tougher penalties for those who harm patients and steal NHS resources and money that should be used to care for the sick.