The article discusses the revelation that 23 elite Chinese swimmers had tested positive for a banned substance before the 2021 Summer Olympic Games. Despite this, China and the global antidoping authority defended their decision to allow the swimmers to compete. It was revealed that three of the swimmers had previously tested positive for a different performance-enhancing drug, but had escaped being publicly identified and suspended. The article raises concerns about the credibility of China's claims of unintentional ingestion and questions the effectiveness of the antidoping system in dealing with Chinese doping. It also highlights the lack of transparency and accountability in handling positive tests, as well as the controversy surrounding the clearance of the swimmers for the 2021 Olympics. The article emphasizes the impact of these revelations on athletes' confidence in the antidoping system.