The proximal cause of the demand goes unmentioned in the NPR story. From NYT (
https://www.nytimes.com/2024/07/24/world/olympics/salt-lake-...):
> [FBI] agents working on that investigation tried to question a top swimming official when he was in the United States last month for the U.S. Olympic trials, triggering alarms in global sports circles about the potential legal risks from the inquiries.
> In response, WADA officials have moved a meeting scheduled to be held in the United States later this year to Canada, ensuring that its officials cannot be questioned by the American authorities ...