"The FBI has come under intense criticism after a 2017 leak exposed that its counterterrorism division had invented a new, unfounded domestic terrorism category it called “black identity extremism.”"
See: The FBI Spends a Lot of Time Spying on Black Americans (The Intercept, link):
“Since then, legislators have pressured the bureau’s leadership to be more transparent about its investigation of black activists, and a number of civil rights groups have filed public records requests to try to better understand who exactly the FBI is investigating under that designation.”