Black Americans have gone through a black power renaissance before- during the late 60’s and early 70’s. A lot of the progress they made in promoting black unity and self-awareness was targeted and unraveled by the FBI via COINTELPRO. A specific component was the Ghetto Informant Program.
References
FBI’s Deadly Games (New York Times, 1976)
J Edgar Hoover: The Man and The Secrets
Dissent in Wichita: The Civil Rights Movement in the Midwest, 1954-72