The FBI's handling of child sexual abuse investigations must improve, an internal watchdog said in a new report released on Thursday. The report comes more than 3 years after it came to light that the FBI was aware of U.S. gymnastics doctor Larry Nassar molesting female athletes but did not act quick enough. "The DOJ OIG found that further improvements are needed to build upon the FBI’s recent changes to its crimes against children and human trafficking (CAC/HT) program to ensure it appropriately addresses child sexual abuse allegations," read a summary of the report.