This is nothing new, either. For those that don't know, the FBI under Hoover worked to undermine protest movements, resorting to blackmail and political assassinations to meet their ends. This is verified and accepted fact; COINTELPRO documents were stolen by activists and released, and details psychological warfare carried out on MLK, to the point of encouraging him to commit suicide, the murder of Fred Hampton and other prominent members of the Black Panthers, and many, many other atrocities committed against so-called subversives.

Emily Maitliss did an excellent podcast for the BBC on Hoover (called 'The People Vs J Edgar Hoover') Not sure if it's available abroad, but well worth a listen.