Defoe wears the specs here. Then came 1991's masterwork, JFK, Oliver Stone's own conspiracy-theory Citizen Kane/Rashomon, which retells the Kennedy assassination and general 60s paranoia, from the perspective of Kevin Costner (never better), as Jim Garrison.
Notably, characters wearing Malcolm X glasses are, to misquote Yeats, filled with passionate intensity, but don't lack conviction - they marry the action man with the man of thought - as the man under the floorboards thought was impossible. Watching Hackman take on Brad Dourif in the cornpone barber's chair, the other night, I recalled how thrilling such films are, where a clear moral evil (Southern bigotry) collides with a clear moral good (government-protected civil rights) - a Democrat's version of the roughneck 80s actioners that were more Reagan-era in their lone wolf brutality. Now, when the Tea Party again questions the role of "big government" we need to be reminded of the value of men in glasses.