Concerns over the water quality of Paris’ Seine River have cast a shadow over the 2024 Olympics, leading to the cancellation of a pre-race triathlon swimming event. Despite a $1.5 billion investment to clean the river and assurances from officials that it would be safe, recent tests revealed unsafe levels of E. coli, particularly after heavy rains. This has reignited doubts about whether the Seine is ready for Olympic swimming events, even as Parisian Mayor Anne Hidalgo recently took a dip to d...