Overview

• Chinese swimmers tested positive for banned substances but were cleared due to alleged food contamination.
• WADA and China's Anti-Doping Agency have faced backlash over their handling of these cases.
• U.S. lawmakers propose legislation to withhold funding from WADA over concerns of leniency.
• Athletes and officials call for greater transparency and stricter enforcement of anti-doping rules.
• The controversy has overshadowed Chinese athletes' performances at the Paris Olympics.