David McReynolds, who — as a socialist and a pacifist — had extensive dealings with J. Edgar’s FBI, provides a revealing take on Eastwood’s new biopic. Though praising the performances of Leonardo DiCaprio and Judi Dench, David says the film’s real power comes from Eastwood’s humanizing Hoover “as a sad, sexually frustrated, deeply insecure man who tried to rearrange facts to help insure his place in history.”