I am surprised that the civil rights movement is not mentioned in this film. The FBI was opposed to the struggle in general, and against Martin Luther King in particular. He was under constant surveillance. Hoover almost seemed obsessed with the man. Perhaps Clint Eastwood steered clear to avoid controversy.
shareit's mentioned, you just have to know how to listen for it.
The film does cover Hoover dictating a letter supposedly from King stating that he was going to commit suicide because of his extramarital affairs And that he expected King to decline public awards.
Eastwood didn't steer clear at all. He addressed it and showed that Hoover did very dishonest things. It's there. The problem is that people do not know American history