Can horse racing clean up its image? 'Every single death is regrettable' – video

Horse racing is a lucrative industry, the playground of kings and billionaires, and financed by betting. But its focus on money is at the detriment of horses, which are at constant risk of injury or death, with unknown numbers of the animals living short, difficult lives away from the racecourse. After a string of controversies, the industry is opening up with welfare and PR initiatives aimed at improving the outlook for thoroughbreds and widening the appeal of the sport. Can racing ever offer a good life to the many horses it produces?