Claims "weather doping" behind discus records

Performance-enhancing drugs have long been the scourge in athletics, but now some observers are claiming "weather doping" was behind a slew of discus records at a meet in the US over the weekend. The men's world record was broken at the Oklahoma stadium in the past week, while a number of other athletes claimed national records, including New Zealand's Connor Bell. Commentators have claimed the performances were enabled by the venue, which is designed to take advantage of high wind speeds. Sports correspondent Dana Johanssen spoke to Lisa Owen.