A group of women gymnasts, including four-time Olympic champion Simone Biles, are suing the FBI for more than $1 billion for its failure to stop U.S. women’s team doctor Larry Nassar from sexually abusing them.

A total of 90 gymnasts have joined in federal tort claims against the FBI, which has admitted that its agents knew about Nassar’s abuses as early as 2015, but failed to act, leaving him free to continue his crimes for another year before his arrest by local law enforcement. It was during that year-long period that most of those signed up to the FBI lawsuit say there were abused.

Nassar, who served as U.S. women’s team doctor for 18 years, was sentenced in 2018 to between 40 and 175 years in prison after admitting that he had molested some of the sport’s biggest names under the guise of providing “medical treatment.”

Read more here.