The inaugural Enhanced Games in Las Vegas, allowing athletes to use performance-enhancing drugs under supervision, has ignited controversy. Experts warn of unknown long-term health effects and significant ethical concerns.

Athletes using performance-enhancing drugs under medical supervision in an attempt to break records : that is the concept behind the Enhanced Games currently taking place in Las Vegas. But the open use of banned substances is already fuelling major controversy, with many experts warning that the long-term effects of these drugs on the body remain largely unknown. The Games are also attracting huge amounts of money through sponsorships and sports betting, as our correspondent reports from Las Veg...