The 12-page report, prepared by the F.B.I. Domestic Terrorism Analysis Unit in August, and later made public by foreignpolicy.org, both announces the existence of the “Black Identity Extremist” movement and deems it a violent threat, asserting that black activists’ grievances about racialized police violence and inequities in the criminal justice system have spurred retaliatory violence against law enforcement officers. It links incidents of violence by a handful of individual citizens like Michael Johnson, who shot 11 Dallas police officers in July 2016, to “B.I.E. ideology” and predicts that “perceptions of unjust treatment of African-Americans and the perceived unchallenged illegitimate actions of law enforcement will inspire attacks against law enforcment"