The U.S. anti-drug official criticizes proposed changes to World Anti-Doping Agency (WADA) anti-doping rules, warning they could weaken clean-sport protections for the Olympic Games. According to reporting from Winnipeg and Japan Today, the U.S. “drug czar” argues that a set of adjustments under consideration by a WADA panel would “undermine” the credibility of the anti-doping system. The official’s comments focus on how the changes could affect trust in outcomes and the effectiveness of doping controls at major international events. The coverage notes that the dispute centers on WADA’s review and proposed updates to anti-doping protocols, with the U.S. official urging that the integrity of testing and enforcement should not be reduced. While the outlets describe the U.S. position as sharply critical, they do not detail WADA’s specific rationale for the proposed alterations in the provided excerpts. The reports indicate the criticism is aimed at ensuring that any rule changes preserve rigorous standards leading into the Olympics.