World Anti-Doping Agency bans xenon and argon

Following an announcement that the World Anti-Doping Agency is banning the use of xenon and argon, Professor Andrea Sella (UCL Chemistry) explains how these noble gases can enhance an athlete's performance and how their use can be detected. Listen: BBC Radio 4 'Today' (from 2 hours 26 mins), More: BBC Radio Berkshire 'Drivetime' (from 1 hour 51 mins)